Ariel Rider Ebikes Rider Ebikes D Class User Manual

Ariel Rider Ebikes
D-Class User’s Manual

Hi!

Thank you for choosing to be part of the Ariel Rider team

We invite you to read through this guide to learn about your bike and what owning an ebike looks like

First and foremost, remember to be safe out there. Your bike is an accessory to your lifestyle and
activities. Always follow the best practices and traffic rules.

Even being an evolving technology, your ebike is a bike at heart, so it will require basic maintenance and
care to always be performing properly.

Preventive maintenance is the name of the game, we invite you to grow with us taking advantage of the
modular design we use for our technology

Instructions, videos and live support are being created to offer all the knowledge you need to know your
Ariel Rider E-bikes and get the best out of it.

Ariel Rider Ebikes
D-Class User’s Manual

Important Warranty Information

Your bike has had an amazing trip before arriving to your doorstep.

Help us give you the best experience following this unboxing guide

Before assembling your Ariel Rider eBike

Perform a visual inspection of your shipping box and your bike to see everything arrived without
shipping issues. Take pictures if you suspect excessively rough handling.

Register your Ariel Rider by sending us e-mail:

Watch our assembly videos and feel free to invite a handy friend or give us a call if there’s something
you have doubts with. Also you can send us an email to [e-mail] and we can send you more
specific info as continuous feedback keeps us generating more guides

Before Riding your Ariel Rider eBike

Be sure all the items are properly torqued, tightened and connected.

In particular the items you had to install.

If you have any doubts contact us

Send us an email at [e-mail]

And about your warranty...

We stand behind the warranty of our products and can assure you we learn every lesson along the way
bringing it into our services.

Service and support exist because in the real world, there are a lot of variables that will interact with
your bike. So, we want you to be sure that we are here to help you and keep you having the best riding
experience. Your help will always be appreciated as we value your time and attention immensely

Our goal is to be the friend you call when you have a doubt, or when you need to move as you know it’s
always on your side.

So please be invited to read and reach out if any questions

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D-Class User’s Manual

What is Pedal Assist?

Also known as Pedelec, pedal assist refers to the use of a combination of sensors that measure torque
and cadence (force and speed) of your pedaling. This info is passed to the bike's controller, which
generates the power needed to give you a great ride.

We recommend you ride your bike with the power off at first, to get familiar with your D-Class’s braking
and gear shifting. Then, you can start testing the assist levels incrementally to gain familiarity with the
optimal settings for your riding style.

Charging the Battery

The Ariel Rider D-Class features a high-capacity Lithium Ion rechargeable battery. Charge the battery
fully before your first use. The charger that came with your e-bike recognizes the battery pack’s initial
charge and will automatically cease charging when the battery is fully charged; don’t be shy about
topping off your battery before a long trip!

The battery pack can be charged while connected on-board the bike and it can also be charged when
removed off of the bike ( see Removing Battery pack on page 13).

Onboard charging:

• Stand on the left side (non-drive side) and locate the charge port cover on the bottom of the battery
pack.

• Lift the plastic dust cap away to expose the DC charge port.

• Carefully, plug the charger into the charger port

• Connect the AC power cable into the charger and plug the cable into the power outlet.

• The charger will automatically start charging if the battery needs to be charged.

• When the charger is charging the battery, the indicator LED will turn RED. When the charger is
complete, the charger will turn GREEN.

• Charging takes between 1 and 5 hours, depending on battery size and initial charge level.

• When the pack is fully charged, the charger’s light will change from amber to green and automatically
stop charging.

• Disconnect the charger from the wall. Remove the charger plug from battery and close the rubber dust
cap.

• Use your battery often so it exercises the cells and is kept healthy

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D-Class User’s Manual

Caution:

The charger can become warm during charging.

Do not place anything over the charger while it is charging.

Do not use the charger in wet areas.

Do not cover the body of the charger when charging.

Do not charge the battery with any charger which is not supplied or approved to charge your bike.

Do not drop the charger or subject to high vibration.

Notes

If your battery is low, you should choose a lower level of assist if going on stops and hills. The sports
mode will demand enough power for the battery to think is depleted at a point when you can still get
range at a lower assist.

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D-Class User’s Manual

Turning the bicycle ON and OFF

The electric bicycle can be ridden like a normal bicycle with the power turned ON or OFF. However, the
Pedal Assist and Throttle will be active only if the power is turned ON.

Locate the power button on the left side of your handlebar.

• Press and hold the power button for a couple of seconds

• The LCD display panel will will turn on, giving an indication of the battery’s charge level and selected
assist level.

• D-Class can now ride on battery power alone. Throttle and Pedal Assist will be available at the same
time.

• Pressing and holding the power button again will turn off the controller.

• Power should be turned off after each ride to avoid draining the battery. If not, it automatically turns
off within 5 minutes.

Using the Brakes

The bike comes equipped with front and rear Tektro hydraulic disc brakes; the very best available for e­bikes. The brake's main function is to slow down or to stop the bicycle.

• The brake on the front wheel is controlled by the lever on the left-hand side of the handlebar.

• The brake on the rear wheel is controlled by the lever on the right- hand side of the handlebar.

• When slowing down on slippery surfaces, use the rear brake first before applying the front brake.

• A signal wire from each brake lever automatically cuts power to the motor when either brake is being
used. This prevents undue wear to the electric motor.

Your new brakes go through a “Bedding In” period. Which means that after the first 40 to 50 Full stops,
they will wear down to achieve the 100% grip efficiency, resulting in an adjustment needed

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D-Class User’s Manual

Shifting the gears

Your D-Class comes equipped with a Shimano gear set. The lower gears are useful for starting off from a
stop or when riding slowly or climbing steep hills. Higher gears are most effective when riding at speed.
The mid gears fits into the space between. As a normal bike, you will get used to using the gear settings
that are most comfortable for your ride and trip.

• The shifter is located on the right side of the handlebar.

The gear shifting system and motor assist are entirely independent; neither affects the other’s
performance. Both work toward the goal of propelling the bike, of course, and their contributions are
additive.

Using the Assist Control

The control system can be used to maintain a constant level of pedal assist.

How to use the Assist control feature:

• Turn your bike on.

• Using the + or - Buttons, you can select the Assist levels

• The LCD will indicate the Assist Level you are selecting

• Once you start pedaling, the controller will make the motor turn accordingly.

• The bike will now maintain a constant Pedal Assist until:

1. The brakes are applied, or

2. The + or - buttons are pressed to adjust the Assist level, or

3. You stop pedaling, or

4. The battery runs down completely

Note: If your battery level is low, we recommend selecting a lower assist level as the

Battery Management system can deactivate the assist support to protect the

battery from getting too low. Charge your battery fully before each ride.

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D-Class User’s Manual

Using Dual Motor

Using the red switch your handlebar you can pick the motor you want to use.
You can use only front motor, only rear or both motors at the same time.

When your battery level is low, we recommend using only one of the motors to extend your range.

How to read the battery level

The LCD display which will give you an indication of the battery’s voltage. The battery’s voltage can vary
greatly depending on a variety of conditions.

The voltage will decrease temporarily when using the throttle and/or Assist. It may drop when going
uphill regardless of the charge state.

This is normal operation. The voltage will be lower if the battery has been in a cold environment.

To more accurately read the battery’s charge state, let off the throttle. The display lights will stabilize
after 1 second to give an indication of the battery’s level.

Note:

2 Bars: The battery level is low and should be recharged soon. Select a lower assist level

1 Bar: Stop using the throttle, recharge the battery pack.

Understanding Battery Range

All electric bicycles have a riding range that can vary greatly depending on how it is ridden, terrain, tire
pressure, temperature, payload and wind. After a few rides, you will get a sense of the electric bicycle’s
range capability.

Factors that will decrease your range:

• Rapid accelerations using the motor

• Uphill riding

• Heavy payloads

• Headwinds

• Under-inflated tires

• Extreme hot or cold weather

How to increase your range:

• Start by pedaling instead of only using the motor

• Avoid rapidly accelerating using the throttle

• Pedaling to help the motor up steep hills. Use your gears

• Reduce your average assist level and pedal along with the motor

• Reduce payload weight

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D-Class User’s Manual

• Properly inflating your tires between 5-30 psi

• Coast to a stop and avoid rapid decelerations

Notice: Riding downhill or pedaling when not using the throttle will not recharge the battery pack. Do
not over-inflate the tires.

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D-Class User’s Manual

Battery Information and Safety

About the Lithium battery

Your Lithium battery does not have a “memory effect” associated with older battery technologies. It is
highly recommended you charge the battery after every ride even if the battery is only lightly used.

An on-board circuit prevents the battery from over-charging. The battery can achieve between 500 to
700 full charge cycles. As the battery receives more charge cycles, the capacity will become decreased.
Charging a partially flat battery is not considered a full charge cycle.

Notice: The battery must be recharged at least once every month. A battery left unused for several
months may result in permanent capacity loss.

The battery’s capacity will be temporarily reduced in cold environments. Avoid using the electric bicycle
in very hot weather. Store the electric bicycle in a sheltered place.

Battery Safety Information

• Use only the charger supplied with the bicycle.

• Improper usage can cause explosion or fire.

• Do not short-circuit the battery’s terminals.

• Do not use if the temperature is over 60 C (140 F)

• Do not disassemble the battery pack.

• Do not submerge the battery in liquid or use in wet areas.

• Do not set flame to the battery.

• Do not expose battery freezing temperatures for an extended period.

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Removing the battery

The battery can be removed from the bike. This is useful for storing the bike or when the bike is being
transported.

• Turn off the bicycle.

• Locate the keyhole under the left side of the saddle.

• Insert the key into the bike.

• Turn the key counterclockwise and hold.

• Careful get a good grip of the pack from the handle under it and pull the battery out.

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Key parts of the electric bicycle

An electric bicycle is a lot like a normal bicycle. The major difference is the inclusion of a motor which
provides a boost when desired. An onboard rechargeable lithium battery supplies the motor with
electric power. The bicycle can be ridden using both pedal power and battery power at the same time.

Controller

The controller regulates how much power is sent from the battery to the motor.

Throttle

The throttle allows the rider to control the bike’s speed. It sends a signal to the controller telling it how
much power to send to the motor.

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D-Class User’s Manual

ASSEMBLING ELECTRIC BIKE

Step 1: Open box gently. Take all the Styrofoam protectors out of the box so you can easily pull your D-

Class out of the box easily.

Step 2: Install handlebars into the fork head. Please pay attention to the embedded lines on the stem,
your stem should go into the fork head until those lines. After handlebars are in place, please tighten the
4 screws on the sides where the stem goes into the fork head.

Step 3: Inflate the tires. Your tires come inflated and assembled. But it is better to check if it has enough
air pressure and if tires are safely assembled in case they get loose during transportation or air pressure
may go down.

Step 4: Install the Pedals. Locate the pedal marked “R” with a smooth exterior of the pedal axle (1, at
right), which is the right pedal. The right pedal goes on the crank on the right side of the bike (which has
the drivetrain gears and is the same as a rider’s right side when riding). The right pedal is threaded so
that it is tightened by turning clockwise. Carefully thread the right pedal on to the crank on the right side
of the bike slowly and by hand. Do not cross thread or damage the threads.

The left pedal is reverse threaded and tightens counterclockwise. Ensure the pedal is marked with an “L”
and has notches on the exterior of the pedal axle (2, at right), indicating it is the left pedal. Carefully
thread the pedal onto the left crank by hand slowly. Do not cross thread or damage the threads. Tighten
each pedal securely using a pedal wrench to avoid damage caused by wider wrenches, as shown in
assembly video.

Step 5: Install the front fender on.

Step 6: Check if battery is locked. Never ride your D-Class with unlocked battery.

Step 7: Install Headlight. The headlight should be adjusted to illuminate the road ahead and not blind on

coming traffic. While installing the headlight, please use the 2 smaller screws in the headlight box to fix
the headlight onto the headlight holder on the fork.

Step 8: Install the foot pegs on. Please note that there are screws and bolts to install the foot pegs in the
box which has your charger in.

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BATTERY CHARGING

Basic Charging Procedure Follow these steps for charging your bike from Ariel Rider E-Bikes:

1.Ensure the battery is off by inspecting the switch on the battery. Safely remove the battery as
previous instructions.

2.Remove the rubber cover on the charging port on the opposite side of the battery from the key switch.

3.Plug the charger into the battery’s charging port. With the battery off the bike, place the charger in a
flat, secure place, and connect the DC output plug from the charger (round barrel connector) to the
charging port on the side of the battery.

4.Plug the charger into a power outlet. Connect the charger input plug (110/220-volt plug) to the power
outlet. Charging should initiate and will be indicated by the LED charge status lights on the charger
illuminating as two red lights.

5.Unplug the charger from the outlet, then the charging port. Once fully charged, indicated by one
charging indicator light turning green(and one remaining red),unplug the charger from the wall outlet
first and then remove the charger output plug from the battery charging port.

Always charge your battery in temperatures between 50°F –77°F(10°C –25°C) and ensure the battery
and charger are not damaged before initiating charge. If you notice anything unusual while charging,
please discontinue charging and use of the bike and contact Ariel Rider E-bikes Technical Support for
help.

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D-Class User’s Manual

BATTERY CHARGING BEST PRACTICES

• Check the charger, charger cables, and battery for damage before beginning each charge.

• Always charge in a safe area that is cool*, dry, indoors, away from direct sunlight, dirt, or debris,

in a clear area away from potential to trip on the charging cords, or for damage to occur to the
bike, battery, or charging equipment while parked and/or charging. *Always charge your battery
in temperatures between 50 °F –77 °F (10 °C –25 °C).

• The battery can be charged on or off the bike. To remove the battery, turn the key to the off and

unlocked position (see the Start-Up Procedure section for details) and then carefully pull the
battery forward and up until the battery detaches from the receptacle. See the When the
Battery is Removed section for more information for off-bike battery handling.

• The battery should be recharged after each use, so it is ready to go the full range per charge

next ride. There is no memory effect, so charging the battery after short rides will not cause
damage.

• Charging the battery normally takes 3-7 hours. In rare cases, it may take longer to allow the

battery management system to balance the battery, particularly when the bike is new or after
long periods of storage. Balance the battery during the first three charges. See the Balancing the
Battery section for more information.

• The charge indicator lights will show two red lights while the battery charges. When charging is

complete, one indicator light will turn green, so one green, and one red will be illuminated.
Ensure the lights face upward when charging.

• Remove the charger from the battery within one hour of the green light indicating a complete

charge. The charger is designed to automatically stop charging when the battery is full, but
unnecessary wear of the charging components could occur if the charger is left attached to the
battery and a power source for longer than 12 hours. Detach the charger within one hour, or as
soon as possible, once the green light indicates a complete charge to avoid unnecessary wear of
charging components.

• Never charge a battery for more than 12 hours at a time.

• Do not leave a charging battery unattended

Failure to follow Battery Charging Best Practices could result in unnecessary wear to the
charging components, battery, and or charger, and could lead to an underperforming or
non-functional battery and replacement will not be covered under warranty.

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When the Battery Is Removed

• Ensure the battery is turned off whenever it is being removed or off the bike.

• Be careful not to drop or damage the battery when lifting the battery off the frame or while

loose from the bike.

• Do not touch or damage the “+” and “-” terminal contacts on the bottom of the battery and

keep them clear of debris.

• Do NOT operate the bike with the electrical system in the on position, or damage to the

electrical system can occur.

Use caution to avoid damage to battery connector terminals, which are exposed when
the battery is unlocked and removed from the frame of the bike. In the case of damage
to the terminals or battery mounts, please discontinue use and contact Ariel Rider E­Bikes Technical Support immediately

When Installing the Battery onto the Bike

• Ensure the battery is turned off before sliding the battery onto the frame mount receptacle.

• Do not force the battery onto the receptacle; slowly align and gently push the battery down into

the receptacle.

• Ensure the battery has been properly secured to the bike before each use by carefully pulling

upwards on the battery with both hands to test the security of the attachment of the battery to
the mount once locked.

Charging Time

When the input and output plugs of the charger are connected properly, the two red charging indicator
lights should illuminate; when charging is complete, one red and one green light should illuminate. The
time the charger takes to fully charge the battery is dependent on various factors including distance
traveled, riding characteristics, terrain, payload, and battery age. The following table provides an
estimate of charge time based on most common distances traveled in regular operation:

Notice: The battery may take longer to charge when fully depleted, when very new, and after 3-5 years
of regular use. If your battery does not seem to be charging normally, taking longer to charge than
expected, or you are experiencing substantial reduction in range, please discontinue use and contact
Ariel Rider E-Bikes immediately.

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Charger Safety Information

• The charger should only be used indoors in a cool, dry, ventilated area, on a flat, stable, hard

surface.

• Avoid charger contact with liquids, dirt, debris, or metal objects. Do not cover the charger while

in use.

• Store and use the charger in a safe place away from children and where it cannot suffer damage

from falls or impact.

• Fully charge the battery before each use to ensure it is ready to go the full range per charge, to

extend the life of the battery, and help reduce the chance of over-discharging the battery.

• Do not charge the battery with any chargers other than the one originally supplied from Ariel

Rider E-Bikes or a charger designed for use with your specific bike purchased directly from Ariel
Rider E-Bikes.

• The charger works on 110/220 V 50/60 Hz standard home AC power outlets and the charger

automatically detects and accounts for incoming voltage. Do not open the charger or modify
voltage input.

• Do not yank or pull on the cables of the charger. When unplugging carefully remove both the AC

and DC cables by pulling on the plastic plugs directly, not pulling on the cables.

• The charger will get hot when operating as designed. If the charger gets too hot to touch, you

notice a strange smell, or any other indicator of overheating, discontinue charger use
immediately and contact Ariel Rider E-Bikes Technical Support.

Charge the battery only with the charger originally supplied with the bike from Ariel
Rider E-Bikes, or a charger purchased directly from Ariel Rider E-Bikes, designed for use
with your specific bike serial number, as approved by Ariel Rider E-Bikes. Never use an
aftermarket charger, which can result in damage, serious injury, or death.

Please take special care in charging your bike from Ariel Rider E-Bikes in accordance with
the procedures and safety information detailed in this manual. Failure to follow proper
charging procedures can result in damage to your bike, the charger, personal property,
and/or serious injury or death.

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Balancing the Battery

When you first receive your bike and for the first three times you change your battery from Ariel Rider E­Bikes, follow the procedure outlined below to ensure the cells that power the battery are balanced and
operating as efficiently as possible.

Note: Since the battery should arrive with between 50-75% of a charge, it should be able to be ridden
without initially charging once assembled and verified as safe by a certified, reputable bike mechanic.
Charging normally before the first ride is also fine.

1. After the first, second, and third ride, regardless of distance ridden or the amount of battery

used, charge the battery and leave the charger attached to the battery and the outlet for as
close to 12 hours as possible (but not longer than 12 hours).Note: this may require leaving the
charger attached to the battery and outlet even after the charger illuminates one green (and
one red) light indicating the battery is full.

2. Disconnect the charger from the outlet then the battery once the first balance charge (long

charge as close to, but not longer than, 12 hours) is complete and store the bike until you are
ready for your next ride.

3. Ride the bike again with power assistance as normal, and discharge part (or all) of the battery

capacity.

4. Repeat steps 1-3 for a total of three balance charging sessions (as close to, but not longer

than,12 hours).

5. After the third balance charge and fourth ride, begin normal charging procedures including:

• Charging the battery after each ride according to the Battery Charging Best Practices

section.

• Removing the charger from the battery as close to the green charge light indicating the

battery is full, which will typically occur between 3-7 hours.

• Never leaving the battery charging for longer than 12 hours.

• Never leaving the battery/charger unattended while charging

Repeat battery balancing steps 1-5 only after a period of long-term battery storage(see the Long-Term
Battery Storage section), if experiencing noticeable range decline, when instructed to do so by Ariel
Rider E-Bikes Technical Support, or up to once per month with frequent use as proactive battery
maintenance. Do not perform battery balancing more than once per month.

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Long-Term Battery Storage

If storing your bike from Ariel Rider E-Bikes for longer than two weeks at a time, follow the instructions
below to maintain the health and longevity of your battery.

• Charge (or discharge) the battery to approximately 75% charged.

• Power off the battery either locked to the frame or unlocked and removed from the frame for

storage (see Start-up Procedure Section for key-position details).

• Store the battery in a dry, climate controlled, indoor location between 50°F –77°F (10°C –25°C).

• Check the battery every month, and if necessary, use the Ariel Rider E-Bikes charger to charge

the battery to 75% charged.

Please follow the above instructions for storing your bike and battery from Ariel Rider E-Bikes.
Failure to follow proper battery storage procedures can result in a non-functional battery and
replacement will not be covered under warranty.

If the battery is physically damaged, non-functional, performing abnormally, or was dropped or
involved in a crash, with or without obvious signs of damage, please discontinue use and
charging and contact Ariel Rider E-Bikes immediately.

Do not cover up the charger when plugged in or charging. The charger air cools and needs to be
on a hard, flat surface in an open space. Use the charger with the indicator light facing upwards.
Do not use with the charger inverted, which can inhibit cooling and reduce charger lifespan.

Do not open the battery housing, which will void the warranty and can result in damage to the
battery, property, serious injury, and/or death.

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NOTICE: Do not perform any of the steps in the Operation section of this manual until you have read this
entire manual, since there are important details related to safety in the following sections.

Read and understand all sections of this entire manual before operating the bike for the
first time. There are important safety warnings throughout the whole manual that must
be followed to prevent dangerous situations, accidents, and possible injury and/or
death.

Users must follow the instructions and warnings contained in this manual for safety. Do
not attempt to operate your bike from Ariel Rider E-Bikes until you have adequate
knowledge of its control and operation. Damage caused by failing to follow instructions
is not covered under warranty and could result in personal injury to you and others, and
damage to property and/or your bike from Ariel Rider E-Bikes. Contact Ariel Rider E­bikes if you have any questions about assembly or operation.

Users must become accustomed to the bike’s power control system before operating.
The throttle mechanism allows full power to be activated from a stop and inexperienced
users should take extra care when first applying the throttle. The pedal assistance
feature is also a powerful option and users should fully research and understand how to
operate it before first use. Not taking care to familiarize yourself and practice the
operation of the power system on your bike from Ariel Rider E-Bikes can lead to
damage, serious injury, and/or death.

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Start-Up Procedure

After the bike has been properly assembled following the assembly video, all components are secured
correctly, and you have read this entire manual, you may turn the bike on and select a power level
following the steps outlined below:

1. Familiarize yourself with the key port and key positions.

2. Test the battery lock security. Ensure the key port is aligned with the circle containing an “X,” in

the “OFF, Locked” position (2) indicating the battery is off and locked onto the frame mount. If
needed, insert the key and align with the “OFF, Locked” icon (2). Remove the key and carefully
use both hands to pull up on the battery to test that the lock is secure.

3. Turn the bike on. Once the battery lock has been verified, insert the key and turn clockwise to

the open circle icon or “ON, Locked” position (1). Remove the key by pulling directly backwards
without twisting so the key barrel remains in the “ON, Locked” position. Locate the LCD Display
Remote Hold down the center “mode” button for approximately 2 seconds until power is
delivered to the LCD Display.

4. Select your desired level of pedal assistance (PAS) between level 0 through 5 using the up and

down arrows on the display remote. Level 1 corresponds to the lowest level of pedal assistance,
and level 5 corresponds to the highest level of pedal assistance. Level 0 indicates pedal
assistance is inactive. Start in PAS level 0 or 1 and adjust from there.

5. Use traction button which is the red color switch on your handlebar. If it is in middle position it

turns on dual motor. Switching to right or left you will activate front or rear motor only mode.

6. To turn on the headlight, once the LCD Display is on, hold down the top (plus button) for

approximately 2-3 seconds until the light illuminates

7. Begin riding carefully. With the proper safety gear, rider knowledge, and understanding you may

now proceed to operate your bike from Ariel Rider E-Bikes. You can begin by pedaling the bike in
the appropriate drivetrain gear with pedal assist level 0 or 1. You may also use the throttle to
accelerate and maintain your desired speed. You can choose the front or rear wheel traction
too.

8. The throttle is used by slowly and carefully rotating the throttle backwards towards the rider.

The throttle power switch is a latching type switch, so once depressed, you do not need to hold
it down. With the power switch button depressed, the throttle can be used whenever the bike is
turned on. Do not use the throttle unless you are on the bike.

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Ensure the key is removed from the battery before mounting or operating the bike.
Leaving the key inside of the battery key barrel while mounting, operating the bike,
pedaling, and/or dismounting can cause damage to the key, battery, and/or injury.

Rear Light Features and Operations

Rear Light is turned on/off in sync with the headlight. You don’t need to turn it on separately.

Best Practices for Extending Range and Battery Life

• Whenever possible, avoid applying full throttle when the bike has slowed to very low speeds,

has stalled, or stopped.

• Pedal to assist the motor when climbing hills and accelerating from a stop.

• Reduce your power consumption whenever possible.

• Do not climb hills steeper than 15% in grade.

• Avoid sudden starts and stops.

• Accelerate slowly.

• Use Singe Motor mode when not necessary to use dual motor.

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DISPLAY INSTRUCTIONS

Functional Description

Power On/Off

Press and hold Power button for 1 second can turn on/off the display. The Display can automatically
shut down when there is no operate & ride for X minutes（X could be 0~9）.

*If the display has been set password power on, you need to input the right password before start.

Assist level operating

Short press UP/DOWN button can change the assist level. Top assist level is 5, 0 for neutral. Level
quantities can be adjusted according to the customer requirements.

Speed & Mileage mode switch

Short press POWER button can change the speed and mileage mode, TRIP->ODO->RANGE-> TRIP ->
TIME -> MAX SPD->AVG SPD.

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**If there is no operation for 10 seconds, display will return Speed (Real-Time) display automatically.

Headlight/backlight On/Off

Press and hold UP button for 3 second can turn on/off the headlight, and the scree will switch to the
corresponding mode. *The motor does not work when the battery voltage is low, Display still can keep
the headlight on for a while when E-bike is in riding.

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D-Class User’s Manual

Data cleanup

Press and hold UP & DOWN buttons together for 1 second can reset several temporary data, temporary
data include AVG Speed / MAX Speed / Trip / Time.

* These temporary data can’t be erased by power off

Parameter setting

Double press POWER button (press interval less than 0.3 second) can get into setting menus, press
UP/DOWN buttons to change the parameter setting, press POWER button can switch to next item.
Double press POWER button will exit from menu.

• Display will automatically quit menu when there is no operation for 30 seconds.

• For safety reasons, display can’t get into MENU when riding.

• Display will quit MENU when start riding. The order of parameters are as follow.

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D-Class User’s Manual

Language：Nonadjustable.

System : Press Up / Down button to switch between Metric / Imperial.

Brightness: Press Up / Down button to change the brightness of the backlight, ׀ is darkness，׀׀׀׀׀ is
brightness. Daytime mode default ׀׀׀׀׀, night mode default ׀׀.

Auto off: Press UP/DOWN button to change the auto power off time, from 1 to 9 and OFF, the number
represent time (minutes) to shutdown, default value is 5 minutes.

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D-Class User’s Manual

Scenes: Nonadjustable.

Battery Ind: Press UP/DOWN button to change the battery indicator, Voltage / Percentage / OFF.

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D-Class User’s Manual

Pow Ind: Press UP/DOWN button to change the Power indicator, Power / Current.

This data represents power output of the battery (not motor).

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D-Class User’s Manual

Clock : Clock setting, press POWER button get into the clock setting menu, press UP/DOWN button to
set Year/Month/Day/Hour/Min/Sec.

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D-Class User’s Manual

Start password: Press POWER button get into the password setting menu. If you had set Start input ON,
you must input right password before power on, password is accorded to your setting.

You need to input the right password before start with 30 seconds, display will power off automatically
if the password was wrong

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D-Class User’s Manual

Basic Setting

*Press DOWN button to move the red arrow to, press POWER button can show all items of the Basic
Setting.

Wheel: Press UP/DOWN can change the wheel setting, optional wheel diameter is
12/14/16/18/20/22/24/26/27/27.5/28/29/30/31 inch, 51cm~255cm represent wheel circumference
(this needs controller support). Wrong value for wheel diameter will cause speed & mileage abnormal.

For D-Class the wheel diameter should be 24” as the tires are 4” thick.

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D-Class User’s Manual

Battery: Press UP/DOWN will change battery voltage setting, optional value is 24V/36V/48V/UBE，UBE
means user define value.

USB: press UP/DOWN button, select press OFF/ON will be no Voltage/Current output after switching off.

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D-Class User’s Manual

Advance setting: Press POWER button can get into the advance setting menu, default password is ‘1919’

Speed limit: Press UP/DOWN will change speed limit, range 10km/h~60km/h. Default value is 25km/h.

Current limit: Press UP/DOWN will change current limit, range 6A~50A. Default value is 15A.

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D-Class User’s Manual

*Speed limit and current limit are restricted by controller and motor.

Poles in motor: Magnetic poles inside the motor, press UP/DOWN will change pole number, range 1~10.
Default value is 1

Start after poles: How many poles (speed sensor) need to be detected by controller before starting
motor. Default value is 3.

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D-Class User’s Manual

Clockwise start: This parameter represents speed sensor turn direction, default value is Y (forward).

Throttle 6KM: this parameter can set the throttle function, N represent max speed, Y represent 6Km

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D-Class User’s Manual

Throttle Level: This parameter is functional when Throttle 6KM set N, Press UP/DOWN will change Y/N,
N represent Throttle start max speed, Y represent throttle’s speed is accorded to the assist level.

Assist levels: This parameter can customize assist levels, options are 3/5/9/UBE, UBE represent factory
default settings.

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D-Class User’s Manual

Factory setting: Press POWER button enter Restore Factory settings item, set YES will restore all
parameter to factory settings.

Information: Show information of the E-bike.

Product info: Get into this item can show hardware version software version...

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D-Class User’s Manual

Battery info: Get into this item can show all information of battery, including Voltage, Capacity, Cycle
times, Health, Temperature of battery, Remaining Capacity, Full Charge Capacity, Initial Capacity，Max
Charge Times.

*These information needs to be supported by battery communication.

Self-Testing: Get into this item can Self-testing, and show testing information of the BIKE, including
Controller→ PAS sensor→ Speed sensor→ Throttle→ Motor hall sensor→ Brake sensor. Follow the
prompts requires the operator.*-- This indicates ignore detection, NG test will not pass.

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D-Class User’s Manual

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Error Code

Error description

Handle

01

Communication Error

Check the cable connection

21

Current protection

Check controller.

22

Throttle error

Check turn to connect.

23

three-phase power error

Check three-phase power line
connection

24

Hall error

Check the hall connection

25

Brake error

Check the brake connection.

26-99

Reserved

Please contact the manufacturer for
error definitions

30

Communication Error

Check the cable connection

D-Class User’s Manual

Display

It can show warning message, icon shows on the screen, and show error code at the bottom of the
screen, error code from 01~25, definition see the table below.

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D-Class User’s Manual

Screen Assembly instructions

If you need to disassemble and assemble the display, please follow the below instructions.

Please pay attention to the screw’s torque value, damaged caused by excessive torque is not within the
scope of the warranty.

There are 2 directions for the clamp installation, forward or backward.

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D-Class User’s Manual

Clamps suit for 3 size of handlebar, 31.8mm, 25.4mm, 22.2mm, there are transfer rings for 25.4mm and

22.2mm, transfer ring must be assembled with the special directions, pay attention to the green arrow
below.

Connector descriptions

1. Red wire : Anode(24v/36v/48V)

2. Blue wire : Power cord to the controller

3. Black wire : GND

4. Green wire : RxD (controller -> display)

5. Yellow wire : TxD (display -> controller)

Assist level instructions

Assist level can be customized, the highest level is 9, common used assist level see the table below:

Ariel Rider Ebikes

Expected Range

Operating Condition(s)

20 mi (32 km)

• Hilly Terrain

Light Pedaling

30 mi (48 km)

Flat Terrain

• Not Windy

D-Class User’s Manual

Driving Range

The range of your bike from Ariel Rider E-Bikes is the distance the bike will travel on a single full charge
of the onboard battery. The range values in this manual are estimates based on expected usage
characteristics of bikes by Ariel Rider E-Bikes. Some of the factors which effect range include changes in
elevation, speed, payload, acceleration, number of starts and stops, and ambient air temperatures. Tire
pressure and terrain are also important variables to consider.

We suggest that you select a lower assistance level when you first get your bike from Ariel Rider E-Bikes
to get to know your bike and travel routes. Once you become familiar with the range requirements of
your travel routes and the capabilities of your Ariel Rider E-Bikes, you can then adjust your riding
characteristics if you so desire.

The following table provides general estimates and outlines various factors effecting range and their
combined estimated effects on range. This table is meant to help owners understand the factors that
can contribute to decreased range, but Ariel Rider E-Bikes makes no claims to the range that individual
users might experience in a particular use case, conditions, or riding characteristics.

Following is the expected range for Standard Battery.

• Heavy Payload

• Windy

• HighPedal Assist Level/ High Throttle Use

•

•

• Normal Payload

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Medium Pedal Assist Level/ Moderate

Light Pedaling

40 mi (64 km)

• Flat Terrain

Moderate to Heavy Pedaling

D-Class User’s Manual

•

Throttle Use

•

• Normal Payload

• Not Windy

• Low Pedal Assist Level/ Minimal Throttle

Use

•

Parking, Storage, and Transport

Please follow these basic parking, storage, and transport tips to ensure your bike is well cared for on and
off the road.

• When pushing or carrying the bike manually, turn off the power to avoid accidental acceleration

from the motor.

• Switch the power and any lights off to conserve battery. Remove the key from the bike and

ensure the battery is locked to the frame in the off position or use the key to remove the battery
and bring it with you for security.

• It is recommended to park indoors. If you must park outdoors in rain or wet conditions, you

should only leave your bike from Ariel Rider E-bikes outside for a few hours and proceed to park
the bike in a dry location afterwards to allow all the systems to dry out. Much like a regular bike,
use in wet conditions mandates a more regular maintenance schedule to ensure your bike does
not become rusty, corroded, and to ensure all systems are always working safely.

• In public places, your bike from Ariel Rider E-Bikes must be parked in accordance with local rules

and regulations.

• Locking up your bike is recommended to ensure your bike is secure and the chance of theft is

reduced. Ariel Rider E-Bikes makes no claims or recommendations on the proper lock hardware
or procedures to secure your bike, but we do recommend you take the appropriate precautions
to keep your bike from Ariel Rider E-Bikes safe from theft.

• Do not park, store, or transport your bike from Ariel Rider E-Bikes on a rack not designed for the

bike’s size and weight.

• Use a rack compatible with the width of tires used on your bike. Some racks may not

accommodate all tire widths.

• When storing your bike or carrying your bike on a rack for transport, remove the battery to

reduce the weight of the bike, make lifting and loading easier, and to protect the battery by
transporting in the cab of a vehicle.

• Avoid transporting Ariel Rider E-Bikes on a vehicle rack during rain, as this may cause water

damage to the electrical components. Contact Ariel Rider E-bikes Technical Support if you have
questions about preventative measures.

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D-Class User’s Manual

Maintenance

Basic Bike Care

To ensure safe riding conditions you must properly maintain your bike from Ariel Rider E-Bikes. Follow
these basic guidelines and see a certified, reputable bike mechanic at regular intervals to ensure your
bike is safe for use and fun to ride. See the Pre-Ride Safety Checklist and Recommended Service
Intervals sections in this manual for more detailed information.

1. Properly maintain batteries by keeping them fully charged when between uses of up to two

weeks apart. See Long-Term Battery Storage section of manual for information on storing the
battery for longer than two weeks between rides.

2. Never immerse or submerge the bike or any components in water or liquid, the electrical system

may be damaged.

3. Periodically check wiring and connectors to ensure there is no damage and the connectors are

secure.

4. To clean, wipe the frame with a damp cloth. If needed, apply a mild non-corrosive detergent

mixture to the damp cloth and wipe the frame. Dry by wiping with a clean, dry cloth.

5. Store under shelter; avoid leaving the bike in the rain or exposed to corrosive materials. If

exposed to rain, dry your bike afterwards and apply anti-rust treatment to chain and other
unpainted steel surfaces.

6. Riding on the beach or in coastal areas exposes your bike to salt, which is very corrosive. Wipe

down your bike frequently and wipe or spray all unpainted parts with anti-rust treatment.
Damage from corrosion is not covered under warranty so special care should be given to extend
the life of your bike when used in coastal areas or are as with salty air or water.

7. If the hub and bottom bracket bearings have been submerged in water or liquid, they should be

taken out and re-greased. This will prevent accelerated bearing deterioration.

8. If the paint has become scratched or chipped in the metal, use touch up paint to prevent rust.

Clear nail polish can also be used as a preventative measure.

9. Regularly clean and lubricate all moving parts, tighten components, and adjust as required.

If you do not have the experience, skill, and tools to complete maintenance and
adjustment of your bike, Ariel Rider Bikes strongly recommends having a certified,
reputable bike mechanic maintain, tune, and ensure the bike is safe to ride.

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Interval

Inspect

Service

Replace

Weekly,

• Check hardware for proper

damage.

• Clean frame by

• Replace any

Monthly,

• Check brake pad alignment,

• Clean and

battery.

• Replace brake and

Every 6

• Inspect drivetrain (chain, chain

• Standard tune-up

• Replace brake

necessary.

D-Class User’s Manual

Recommended Service Intervals

Regular inspection and maintenance are key to ensure Ariel Rider E-Bikes function as intended, and to
reduce wear and tear on their systems. Recommended service intervals are meant to be used as
guidelines. Real world wear and tear, and the need for service, will vary with conditions of use. We
generally recommend inspections, service, and necessary replacements be performed at the time or
mileage interval that comes first in the following table.

100-200
miles

250-750
miles

torque: See Recommended
Torque Values chart.

• Check drivetrain for proper

alignment and function
(including the chain, freewheel,
chainring, and derailleur).

• Check wheel trueness and for

quiet wheel operation (without
spoke noise).

• Check condition of frame for any

brake cable tension.

• Check bike is shifting properly,

proper derailleur cable tension.

• Check chain stretch.

• Check brake and shifter cables

for corrosion or fraying.

• Check spoke tension.

• Check accessory mounting (rack

mounting bolts, fender
hardware, and alignment).

wiping frame
down with damp
cloth.

• Use barrel

adjuster(s) to
tension
derailleur/brake
cables if needed.

lubricate
drivetrain.

• Check crankset

and pedal torque.

• Clean brake and

shift cables.

• True and tension

wheels if any
loose spokes are
discovered.

• Balance the

components
confirmed by Ariel
Rider E-bikes
Technical Support
or a certified,
reputable bike
mechanic to be
damaged beyond
repair or broken.

shift cables if
necessary.

• Replace brake

pads if necessary.

Months,
750­1250
miles

• Inspect all cables and housings.

ring, freewheel, and derailleur).

by certified,
reputable bike
mechanic is
recommended.

• Grease bottom

bracket.

pads.

• Replace tires if

necessary.

• Replace cables

and housings if

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Safety Check

Basic Steps

1. Brakes

• Ensure front and rear brakes work properly.

functions, and brake light are functioning properly.

2. Wheels and Tires

• Ensure tires are inflated to within the recommended limits

displayed on the tire side walls and holding air.

D-Class User’s Manual

Recommended Torque Chart:

1. Brake Caliper Mount: 6-8 Nm,

2. Disc mounting bolts: 2.4 Nm,

3. Disc mounting lockring: 40Nm,

4. Cassette lockring: 29.4-49 Nm,

5. Freehub body: 35-50 Nm,

6. Chainring bolt: 7.9 - 10.7 Nm,

7. Chainring spider to crank arm: 50-70 Nm,

8. Crankbolts: 34-44 Nm,

9. Rear derailleur mounting bolt: 8-10 Nm,

10. Rear derailleur cable pinch: 3.9~5.9 Nm

11. Brake Levers: 6~8 Nm

12. Handle bar end extensions: 16.3 Nm

13. Pedal shaft into crank arm: 35 Nm

14. stem bolt: 19.6~29.4 Nm

15. Axle wheel mount nuts: 29.4~44.1 Nm

Pre-Ride Safety Checklist

Notice: Before every ride, and after every 25-45 miles, we advise following the pre-ride safety checklist
in the table below.

• Check brake pads for wear and ensure they are not over-worn.

• Ensure brake pads are correctly positioned in relation to the

• Ensure brake control cables are lubricated, correctly adjusted,

• Ensure brake control levers are lubricated and tightly secured

• Test brake levers are firm and that brake, motor cutoff

rims.

and display no obvious wear.

to the handlebars.

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Ensure tires have good tread, have no bulges or excessive wear,

tensioned, fully closed, and secured.

3. Steering

• Ensure handlebar and stem are correctly adjusted and

and the direction of travel.

4. Chain

• Ensure the chain is oiled, clean, and runs smoothly.

conditions

5. Bearings

• Ensure all bearings are lubricated, run freely, and display no

bracket bearings.

6. Cranks and Pedals

Ensure pedals are securely tightened to the cranks.

• Ensure the cranks are securely tightened and are not bent.

7. Derailleurs

• Check that the derailleur is adjusted and functioning properly.

• Ensure all brake and shift cables are properly lubricated.

8. Frame, Fork, and

• Check that the frame and fork are not bent or broken.

release lever is secur ely tightened

9. Motor Drive

Ensure hub motor is spinning smoothly and motor bearings are

arms and torque washers are in place.

10. Battery

• Ensure battery is charged before use.

Let bike dry completely for using again.

D-Class User’s Manual

•

and are free from any other damage.

• Ensure rims run true and have no obvious wobbles, dents, or

kinks.

• Ensure all wheel spokes are tight and not broken.

• Check axle nuts and front wheel quick release to ensure they

are tight.

• Ensure the locking lever on the quick release skewer is correctly

tightened and allow proper steering.

• Ensure the handle bar is set correctly in relation to the forks

• Extra care is required in wet, salty/otherwise corrosive, or dusty

excess movement, grinding, or rattling.

• Check headset, wheel bearings, pedal bearings, and bottom

•

• Ensure shifter and brake levers are attached to the handlebar

securely.

Seat

Assembly and
Throttle

• If either frame or fork are bent or broken, they should be

replaced.

• Check that the seat is adjusted, properly and seat post quick

•

in good working order.

• Ensure all power cables running to hub motor are secured and

undamaged.

• Make sure the hub motor axle bolts are secured and all torque

• Ensure there is no damage to battery.

• Lock battery to frame and ensure that it is secured.

• Charge and store bike and battery in a dry location, between

50°F–77°F.

•

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11. Electrical Cables

Look over connectors to make sure they are fully seated, free

adjusted properly, and unobstructed.

12. Accessories

• Ensure all reflectors are properly fitted and not obscured.

fenders.

D-Class User’s Manual

•

from debris or moisture.

• Check cables and cable housing for obvious signs of damage.

• Ensure headlight, taillight, and brake light are functioning,

• Ensure all other fittings on bike are properly secured and

functioning.

• Inspect helmet and other safety gear for signs of damage.

• Ensure rider is wearing helmet and other required riding safety

gear.

• Ensure mounting hardware is properly secured if fitted with

rear rack.

• Ensure taillight and taillight power wire are properly secured if

fitted with rear rack.

• Ensure fender mounting hardware is properly secured if fitted

with fenders.

• Ensure there are no cracks or holes in fenders if fitted with

Your cables, spokes, and chain will stretch after an initial break-in period of 50-100 mi
(80-160 km), and bolted connections can loosen. Always have a certified, reputable bike
mechanic perform a tune-up on your Ariel Rider D-Class after your initial break-in period
of 50-100 mi (80-160 km) (depending on riding conditions such as total weight, riding
characteristics, and terrain). Regular inspections and tune-ups are particularly important
for ensuring that your bike remains safe and fun to ride.

Tire Inflation and Replacement

The standard tires we offer on our bikes come with a rated maximum pressure. We recommend using a
pressure that is at least 20% less than the maximum as this will provide added suspension and diminish
the shock and vibration the bike has against the road. Also, while riding the pressure tends to increase
as the tires heat up.

Recommended Front Tire Pressure: 25 psi

Recommended Rear Tire Pressure: 25 psi

Maximum Rated Pressure: 5-30 psi

It is critically important that proper air pressure is always maintained in pneumatic tires.
Do not underinflate or overinflate your tires. Low pressure may result in loss of control,

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D-Class User’s Manual

and overinflated tires may burst. Failure to always maintain the air pressure rating
indicated on pneumatic tires may result in tire and/or wheel failure.

Inflate your tires from a regulated air source with an available pressure gauge. Inflating
your tires from an unregulated air source could overinflate them, resulting in a burst
tire.

Even tires equipped with built-in flat-preventative tire liners, like those that come with Ariel Rider E­Bikes, can and do get flats from punctures, pinches, impact, and other causes. When tire wear becomes
evident or a flat tire is discovered, you must replace the tires and/or tubes before operating the bike or
injury to operators and/or damage to your bike from Ariel Rider E- Bikes could occur.

When changing a tire or tube, ensure that all air pressure has been removed from the
inner tube prior to removing tire from the rim. Failure to remove all air pressure from
the inner tube could result in serious injury

Using aftermarket tires or inner tubes, not provided by Ariel Rider E-Bikes may void your
warranty, create an unsafe riding condition, or damage to your bike by Ariel Rider E­Bikes. If required by law, ensure replacement aftermarket tires have sufficient reflective
sidewall striping.

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Symptoms

Possible Causes

Most Common Solutions

1

It doesn’t work

1. Insufficient battery

5. Brakes are applied

1. Charge the battery

2

Irregular acceleration

1. Insufficient battery

throttle

1. Charge or replace

3

When powered on the

1. Loose wiring

4. Damaged motor

1. Repair and or reconnect

4

Reduced range

1. Low tire pressure

5. Brakes rubbing

1. Adjust tire pressure

5

The battery won’t charge

1. Charger not well

4. Wiring damaged

1. Adjust the connections

6

Wheel or motor makes

1. Damaged motor

3. Damaged motor wiring

1. Replace

D-Class User’s Manual

Troubleshooting

Basic Troubleshooting

and/or reduced top
speed

motor does not respond

power

2. Faulty connections

3. Battery not fully seated

in tray

4. Improper turn on

sequence

power

2. Loose or damaged

2. Loose or damaged

throttle

3. Loose or damaged

motor plug wire

2. Low or faulty battery

3. Driving with too many

hills, headwind, braking,
and/or excessive load

4. Battery discharged for

long period of time
without regular charges,
aged, damaged, or
unbalanced

2. Clean and repair

connectors

3. Install battery correctly

4. Turn on bike with

proper sequence

5. Disengage brakes

battery

2. Replace throttle

2. Tighten or replace

3. Secure or replace

4. Repair or replace

2. Check connections or

charge battery

3. Assist with pedals or

adjust route

4. Balance the battery;

contact Tech Support if
range decline persists

5. Adjust the brakes

strange noises

connected

2. Charger damaged

3. Battery damaged

bearings

2. Damaged wheel spokes

or rim

2. Replace

3. Replace

4. Repair or replace

2. Repair or replace

3. Repair or replace motor.

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D-Class User’s Manual

Warnings and Safety

General Operating Rules

Notice: It is recommended that users pay special attention to all the general operating rules
below before operating their bike from Ariel Rider E-Bikes

• When riding obey the same road laws as all other road vehicles as applicable by law in your

area.

• For additional information regarding traffic/vehicles laws, contact the road traffic authority in

your area.

• Ride predictably, in a straight line, and with the flow of traffic. Never ride against traffic.

• Use correct hand signals to indicate turning.

• Ride defensively; to other road users you may be hard to see.

• Concentrate on the path ahead. Avoid potholes, gravel, wet or oily roads, wet leaves, curbs,

train tracks, speed bumps, drain gates, thorns, broken glass, and other obstacles, hazards, and
puncture flat risks.

• Cross train tracks at a 90-degree angle or walk your bike across.

• Expect the unexpected such as opening car doors or cars backing out of driveways.

• Be careful at intersections and when preparing to pass other vehicles or other cyclists.

• Familiarize yourself with all the features and operations of the bike by Ariel Rider E-Bikes.

Practice and become proficient at shifting gears, applying the brakes, using the power assist
system, and using the throttle in a controlled setting before riding in riskier conditions.

• Wear proper riding clothes including closed-toe shoes. If you are wearing loose pants, secure

the bottom using leg clips or elastic bands to prevent them from being caught in the chain or
gears. Do not use items that may restrict your hearing.

• Check your local rules and regulations before carrying cargo.

• When braking, apply the rear brake first, then the front brake. If brakes are not correctly

applied, they may lock up, you may lose control, and you could fall.

• Maintain a comfortable stopping distance from all other objects, riders, and vehicles. Safe

braking distances are based on forces such as road surface and light conditions among other
variables.

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D-Class User’s Manual

The following safety notes provide additional information on the safe operation of your bike
from Ariel Rider E-Bikes and should be closely reviewed. Failure to review these notes can lead
to serious injury or death.

• All users must read and understand this manual before their first use of the bike from Ariel Rider

E-Bikes. Additional manuals for components used on the bike may also be provided and should
be read before use in addition to this manual.

• Ensure that you comprehend all instruction and safety notes/warnings.

• Ensure the bike fits you properly before your first use. You may lose control or fall if your bike is

too big or too small.

• Always wear an approved bicycle helmet whenever using this product and ensure that all

helmet manufacturer instructions are used for fit and care of your helmet. Failure to wear a
helmet when riding may result in serious injury or death.

• Ensure correct setup and tightening is performed on your bike before first using it and check the

setup, tightening, and condition regularly.

• It is your responsibility to familiarize yourself with the laws and requirements of operating this

product in the area(s) where you ride.

• Ensure the handlebar grips are undamaged and properly installed. Loose or damaged grips can

cause you to lose control and fall.

• Do not use this product with standard bike trailers, stands, vehicle racks, or accessories that

Ariel Rider E-Bikes has not tested for safety and compatibility and have verified as safe and
compatible with the bike. Contact Ariel Rider E-Bikes to check if your equipment will work with
the bike.

• Off-road riding requires close attention, specific skills, and presents variable conditions and

hazards which accompany the conditions. Wear appropriate safety gear and do not ride alone in
remote areas. Check local rules and regulations if off-road ebike riding is allowed.

• Engaging in extreme riding is extremely dangerous and should be avoided. Although many

articles/advertisements/catalogs depict extreme riding, this is not recommended nor permitted,
and you can be seriously injured or killed if you perform extreme riding.

• Bikes and bike parts have strength and integrity limitations and extreme riding should not be

performed as it can damage bike components and/or cause or lead to dangerous riding
situations in which you may be seriously injured or killed.

• Failure to perform and confirm proper installation, compatibility, proper operation, or

maintenance of any component or accessory can result in serious injury or death.

• After any incident, you must consider your bike unsafe to ride until you consult with a certified,

reputable bike mechanic for a comprehensive inspection of all components, functions, and
operations of the bike.

• Failure to properly charge, store, or use your battery will void the warranty and may cause a

hazardous situation.

• You should check the operation of the brake motor cutoff switches before each ride. The brake

system is equipped with an inhibitor which cuts off power to the electric motor whenever the
brakes are engaged. Check proper operation of brake motor cutoff switches before riding.

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D-Class User’s Manual

• Extreme care should be taken when using the pedal assistance sensor and throttle on this

product. Ensure you understand and are prepared for the power assistance to engage as soon as
pedaling is underway.

• Users must understand the operation of the twist throttle and pedal assistance sensors before

using the bike and take ample care in their usage in respect to traveling at speeds appropriate
for the usage area, riding conditions, and user experience level. Always use the lowest assist
level until you are comfortable with the bike and feel confident in controlling the power.

• Any aftermarket changes to your bike from Ariel Rider E-Bikes not expressly approved by Ariel

Rider E-Bikes could void the warranty and create an unsafe riding experience.

• Because electric bikes are heavier and faster than normal bikes, they require extra caution and

care while riding.

• Take extra care while riding in wet conditions including decreasing speed and increasing braking

distances. Feet or hands can slip in wet conditions and lead to serious injury and/or death.

• Do not remove any reflectors or the bell.

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Helmets

It is strongly advised that a properly fitting ANSI or SNELL approved bicycle safety helmet is always worn
when riding your bike.

Always wear a properly fitted helmet that covers the forehead when riding a bike. Many
states require specific safety devices. Itis your responsibility to familiarize yourself with
the local laws, rules and regulations where you ride and to comply with all applicable
laws, including properly equipping yourself and your bike as the law requires.

General Warnings

Like any sport, bicycling involves risk of damage, injury, and death. By choosing to ride a
bike, you assume the responsibility for that risk, so you need to know, and practice the
rules of safe and responsible riding and the proper use and maintenance of this bike.
Proper use and maintenance of your bike reduces risk of damage, injury, and death.

Biking and controlled substances do not mix. Never operate a bike while under the
influence of alcohol, drugs, or any substance or condition that could impair motor
functions, judgement, or the ability to safely operate a bike/vehicle.

The Ariel Rider D-Class is designed for use by persons 18 years old and older. Riders
must have the physical condition, reaction time, and metal capability to ride safely and
manage traffic, road conditions, sudden situations, and respect the laws governing
electric bike use where they ride, regardless of age. If you have an impairment or
disability such as a visual impairment, hearing impairment, physical impairment,
cognitive/language impairment, or a seizure disorder or any other physical condition
that could impact your ability to safely operate a vehicle, consult your physician before
riding any bike.

A Note for Parents and Guardians

As a parent or guardian, you are responsible for the activities and safety of your child. The Ariel Rider D­Class is not designed for use by children

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Wet Weather

It is recommended to not ride in wet weather if avoidable. Ride in wet weather only if
necessary.

This electric bike is not meant for use in puddles, heavy rain, or streams. Never immerse or submerge
this product in water or liquid as the electrical system may be damaged.

• In wet weather you need to take extra care when operating this bike.

• Decrease riding speed to help you control the bike in slippery conditions.

• Brake earlier since it will take longer to slow than when operated in dry conditions.

• Take care to be more visible to others on the road. Wear reflective clothing and use approved

safety lights.

• Road hazards are more difficult to see when wet; proceed with caution.

Night Riding

It is recommended to not ride at night if avoidable. Ride at night only if

necessary.

• Wear reflective and light-colored clothing.

• Slow down and use familiar roads with street lighting, if possible.

• Ensure head light and taillight/brake light are functioning correctly and use them.

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D-Class User’s Manual

Limited Warranty

Warranty Info Every bike by Ariel Rider E- Bikes is covered under a manufacturer's one-year all-inclusive
warranty for the original owner against all manufacturing defects. Ariel Rider E-Bikes warrants this
product, including all individual components against defects in material or workmanship as follows:

ARIEL RIDER E-BIKES LIMITED 1 YEAR WARRANTY

Warranty details below are subject to change at any time; for the most current warranty version, visit
our website. Ariel Rider E-Bikes’ bike components including frame, forks, stem, handlebar, headset, seat
post, seat saddle, brakes, lights, bottom bracket, crank set, pedals, rims, wheel hub, freewheel, cassette,
derailleur, shifter, motor, throttle, controller, wiring harness, LCD display, kickstand, reflectors and
hardware are warranted to be free from manufacturing defects in materials and/or workmanship for a
1-yearperiod from the date of original purchase.

Ariel Rider E-Bikes’ lithium ion batteries are warranted to be free from manufacturing defects in
materials and/or workmanship for a 1-yearperiod from the date of original purchase. The battery
warranty does not include damage from power surges, use of improper charger, improper maintenance
or other such misuse, disassembly, normal wear, or water damage.

Warranty Exclusions

• Liability for material defects does not cover normal wear and tear, which occurs from the

manufacturers’ intended use of the product. Components such as the battery, motor system,
braking system, drivetrain system, seat, grips, and pedals are all subject to intended use-related
wear and are not covered under the warranty from normal wear.

• Damage a rising from the use of the bike in a competition or other applications outside of

normal intended use.

• Damage arising from improper tools, improper assembly, or improper maintenance performed

on the bike.

• Damage resulting from adding non-standard equipment, parts, or modifications.

• Damage resulting from shipping related damages. (It is highly adviced to buy insurance which

cover you against shipping damages)

Additional Warranty Terms

This warranty does not cover any damage or defects resulting from failure to follow instructions in the
owner’s manual, acts of God, accidents, misuse, neglect, abuse, commercial use, alterations,
modification, improper assembly, wear and tear, installation of parts or accessories not originally
intended or compatible with the bike as sold, operator error, water damage, extreme riding, stunt
riding, or improper follow-up maintenance. This warranty does not include normal wear and tear or

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D-Class User’s Manual

consumable parts designed to wear down over time, including tires, tubes, brake pads, cables, bottle
holder and housing, spokes, and handlebar grips. Foot pegs aren’t covered in warranty terms.

Ariel Rider E-Bikes will not be liable and/or responsible for any damage, failure,or loss caused by any
unauthorized service or use of unauthorized parts. In no event shall Ariel Rider E-Bikes be responsible
for any direct, indirect, or consequential damages, including without limitation, damages for personal
injury, property damage, or economic losses, whether based on contract, warranty, negligence, or
product liability in connection with their products. All claims to this warranty must be made through
Ariel Rider E-bikes. Proof of purchase is required with any warranty request.

Additional Information on Wear

Components of the Ariel Rider D-Class are subject to higher wear when compared to bikes without
power assistance. This is because the Ariel Rider D-Class can travel at higher average speeds than regular
cycles and has a greater weight. Higher wear is not a defect in the product and is not subject to
warranty. Typical components affected are the tires, brake pads and rotors, suspension forks, spokes,
wheels, and the battery.

When the useful life of a component is surpassed it can cause unexpected loss of
function. This can result in serious injuries or even death. Therefore, pay attention to
wear characteristics such as cracks, scratches, or changes in the color or operation of
components which could indicate useful life has been exceeded. Worn components
should be replaced immediately. If you are unfamiliar with regular maintenance, a
certified, reputable bike mechanic should be consulted.

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