RadMini Step-Thru
1
2018
Welcome
Thank you for purchasing the RadMini from Rad Power
Bikes
TM
.
We take pride in bringing you a quality product that will offer years of enjoyment. Please read and understand this
manual fully before assembling and riding your bike.
If you have questions after reading this manual, please reference the Rad Power Bikes Help Center, contact us by
email, and/or give us a call on the phone.
We are here to help!
Rad Power Bikes Help Center: www.radpowerbikes.com/help.
Email: support@radpowerbikes.com
Phone: 1-800-939-0310 x 2
Thanks for Riding RAD!
1
Using This Manual
This manual contains details of the product, its equipment, and information on operation, maintenance, and other helpful tips
for owners. Read it carefully and familiarize yourself with the RadMini before using it to ensure safe use and prevent accidents.
Be sure to retain this manual as your convenient RadMini information source. An electronic copy of the
latest version of this manual is available in the Help Center at www.radpowerbikes.com/help.
This manual contains many warnings and cautions concerning the safe operation and consequences if
proper setup, operation, and maintenance are not performed. All information in this manual should be
carefully reviewed and if you have any questions you should contact Rad Power Bikes immediately. The
notes, warnings, and cautions contained within the manual and marked by the triangular Caution Symbol at the right of this
page should also be given special care. Users should also pay special attention to information marked in this manual beginning
with NOTICE.
Because it is impossible to anticipate every situation or condition which can occur while riding, this manual makes no
representations about the safe use of bikes under all conditions. There are risks associated with the use of any bike which
cannot be predicted or avoided, and which are the sole responsibility of the rider. You should keep this manual, along with any
other documents that were included with your bike, for future reference, however all content in this manual is subject to change
or withdrawal without notice. Visit http://www.radpowerbikes.com/help to download the latest version. Rad Power Bikes
makes every effort to ensure accuracy of its documentation and assumes no responsibility of liability if any errors or inaccuracies
appear within. Assembly and first adjustment of your bike from Rad Power Bikes requires special tools and skills and it is
recommended that this should be done by a certified, reputable bike mechanic if possible.
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Table of Contents
Using this Manual .................................................................................................................................................................. 1
General Info ........................................................................................................................................................................... 3
Assembly Instructions ............................................................................................................................................................ 7
Battery Charging .................................................................................................................................................................. 15
Operation ............................................................................................................................................................................ 20
Maintenance ....................................................................................................................................................................... 33
Troubleshooting .................................................................................................................................................................. 37
Warnings and Safety ............................................................................................................................................................ 40
Links to Assembly Video and Online Resources ..................................................................................................................... 46
Warranty ............................................................................................................................................................................. 48
3
General Info
Assembly and Fit
Correct assembly and fit are essential elements of ensuring your bicycling safety, performance, and comfort. Even if you have
the experience, skill, and tools to complete these essential steps before your first ride, Rad Power Bikes recommends having a
certified, reputable bike mechanic check your work.
NOTICE: If you do not have the experience, skill, and tools to complete assembly and fit, Rad Power Bikes highly recommends
having a certified, reputable bike mechanic complete these procedures as well as any future adjustments or tuning.
NOTICE: A critical aspect of assembling your bike by Rad Power Bikes is securing the front wheel and checking the tightness of
the rear wheel axle nuts. All bikes by Rad Power Bikes use a quick release front wheel mounting mechanism and the rear wheel
is bolted on. Both wheels need to be properly secured before operating your bike.
Mandatory Equipment and Use Locations
Before all rides, ensure you have all required and recommended safety equipment and are following all laws pertaining to using
an electric bike in your region. For example, these laws may specify the need for mandatory equipment, use of hand signals, and
where you can ride.
Changing Components or Attaching Accessories
The use of non-original components or spare parts can jeopardize the safety of your RadMini, invalidate your warranty and, in
some cases, cause your RadMini to not conform with laws pertaining to your bike.
The replacement of original components or installation of third-party accessories or accessories from Rad Power Bikes not
explicitly recommended for your bike model, is at your own risk.
4
Safety Check Before Each Ride
Always check the condition of your bike before you ride in addition to having regular maintenance performed. If you are unsure
of how to conduct a complete check of the condition of your bike before every ride, you should consult a certified, reputable
bike mechanic for assistance. See the Pre-Ride Safety Checklist for more information.
Electrical System
The electrical system on your RadMini offers various levels of power assistance and lighting for different operating conditions
and user preferences. It is critical that you familiarize yourself with all aspects of your RadMini’s electrical system and check to
see that it is working correctly before every ride. The front and rear brake levers contain safety power cutoff switches, which
disable the hub motor’s assistance when applied, and both levers should be checked for correct operation. The throttle should
provide smooth acceleration when gradually applied. If the throttle, brake lever cutoff switches, pedal assistance, or lighting is
not functioning normally, intermittent, or not working, please discontinue using your RadMini immediately and contact the Rad
Power Bikes Technical Support team for assistance.
Brakes
Ensure brakes are working correctly, all braking system components are free from damage, and properly secured. When you
fully squeeze the brake levers, ensure neither the front or rear brake levers touch the handlebar. Take your bike to a certified,
reputable bike mechanic to have the brakes repaired if you find a problem.
Tires and Wheels
Your wheels should always spin straight and must be repaired or replaced if they wobble side to side or up and down when
spinning. If your wheels become untrue or spokes loosen, do not attempt to true or tighten unless you have adequate
knowledge, tools and experience. It is recommended that a certified, reputable bike mechanic performs all wheel tuning and
truing operations on your bike from Rad Power Bikes. Ensure your tires and inner tubes are in good working condition without
any visual damage and have the correct amount of air pressure. Always replace tires and inner tubes with punctures, cuts or
damage before you ride. Tires without the correct amount of air pressure can reduce performance, increase tire and component
wear, and make riding your bike unsafe.
5
Quick Release Levers
Quick release levers are located throughout the RadMini for securing the seat post and the front wheel to the bike. These
provide convenience to the user since they allow the front wheel to be removed and the seat post to be adjusted without tools.
Since quick release levers can be loosened during transportation, or accidentally between or during rides, it is important that
you regularly check to ensure these components are properly secured.
Accessories, Straps, and Hardware
Ensure all hardware is secured and all approved accessories are properly attached per the specific component manufacturer’s
instructions. It is good practice to look over all hardware, straps, and accessories before each ride and if you do discover
something is wrong or find something you are not sure about, please have it checked by a certified, reputable bike mechanic.
Suspension, Handlebar, Grips, and Seat Adjustments
The suspension fork on the RadMini will affect the handling of the bike so you MUST understand how it works before use. The
suspension fork should be properly adjusted for your weight and terrain. Check to ensure the handlebar, handlebar stem, and
seat post are properly fastened, aligned, and fitted to the user. Ensure all hardware securing the handlebar and seat is properly
tightened including quick release levers. Loose, worn, or damaged handlebar grips need replacement before you ride.
Battery Charged, Secured, and Unplugged
Ensure the battery is fully charged and operating properly. The battery gauge on the LCD display and battery mounted charge
status indicator should read similarly. The battery MUST be locked onto the frame battery mount properly before use. Ensure
the battery charger is unplugged from the battery, outlet, and stored in a safe location before you ride.
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Fully Assembled RadMini and RadMini Step-Thru
RadMini RadMini Step-Thru
Fully Assembled and Folded
7
Assembly Instructions
NOTICE: The following assembly steps are only a general guide to assist in the assembly of your bike from Rad Power Bikes and is not a
complete or comprehensive manual of all aspects of assembly, maintenance, and repair. We recommend you consult a certified, reputable
bike mechanic to assist in the assembly, repair, and maintenance of your bike.
Step 1: Unpack bike from carton and carefully set out all contents of the box. Remove packaging material protecting the bike
frame and components. Please recycle packaging materials especially cardboard and foam (all #6 EPS foam). Ensure all pieces
are included in the package including:
• RadMini
• Manual(s)
• Assembly Toolkit and Velcro Strap
• Front Wheel
• Charger
• Pedals (marked left and right)
• Keys (two, identical)
• Headlight
• Quick Release (in fork protector plate)
If there are any missing parts, please contact Rad Power Bikes.
Step 2: Secure Folding Mechanism. Check that the central frame hinge is latched and securely locked, as shown in the assembly
video available at www.radpowerbikes.com/help. Always check the frame folding mechanism latch and handlebar folding
mechanism latch are locked before moving or riding the bike.
RadMini High-Step RadMini Step-Thru Handlebar Latch
8
Step 3: Adjust the Handlebar. Rotate the handlebar stem upwards and clamp the folding stem securely as shown in the
assembly video at www.radpowerbikes.com/help. Adjust the stem up and down to a comfortable height and secure all
hardware in the stem assembly, ensuring all hardware is tightened properly and locking mechanisms are fully secured.
Step 4: Install front wheel. For detailed instructions please view the RadMini Assembly
video and Quick Release Installation video found in the Help Center at
www.radpowerbikes.com/help. When properly installed, the front wheel should be fully
seated in the dropouts of the front fork, and the quick release lever should be fully and
properly secured as shown in the assembly and instructional videos. Ensure front wheel and
quick release are properly secured before moving on to the next step.
Step 5: Install the pedals. Locate the pedal marked with an “L” at the pedal axle end and
notches on the outside of the pedal axle (1, at right). The pedal marked “L” with notches goes
on the crank on the left side of the bike (which is the same as a rider’s left side when riding).
The left pedal is reverse threaded and tightens counterclockwise. Carefully thread the
pedals by hand slowly. Do not cross thread or damage the threads. Tighten securely using a
pedal wrench to avoid damage caused by wider wrenches, as shown in assembly video.
The right pedal is threaded so that it is tightened by turning clockwise, has an “R” stamped into the pedal axle end, and a
smooth exterior on the outside of the pedal axle (2, above). Carefully thread the right pedal onto the crank on the right side of
the bike (the side with the drivetrain gears) slowly and by hand. Do not cross thread or damage the threads. Tighten securely
using a pedal wrench to avoid damage caused by wider wrenches.
The RadMini pedals are designed to fold by pressing the pedal end directly towards
the crank and then folding. Use caution to keep fingers and clothing away from the
folding parts. Ensure the pedals are locked in the unfolded position before each ride.
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Step 6: Set desired seat height. Adjust the seat post up or down to a comfortable height, while ensuring
the seat post is inserted into the frame past the minimum insertion point. Ensure the seat post clamp
opening is centered over the gap in the seat tube and secure all hardware and the quick release lever to
lock the seat post in place so it cannot move. Do not overtighten.
Step 7: Install front headlight as shown in the RadMini assembly video available from
www.radpowerbikes.com/help. Carefully align and connect the waterproof connector joining the
headlight to the wiring harness. The headlight angle should be adjusted to illuminate the road ahead and
not blind oncoming traffic.
The headlight is equipped with a light sensor which will automatically dim the headlight when riding
during day to save power. The sensor is covered by a switch on the back of the headlight (above, at right).
When the small opaque sensor is covered, the headlight, when on, will be full brightness, daytime and
nighttime. If the sensor is exposed as shown (above, at right), the headlight, when on, will automatically
dim during the day, and be fully bright when it is dark out. Select either option based on preference.
Step 8: Inflate tires to desired PSI. Recommended pressure is 20 PSI (1.38 Bar) for the front and rear tires
of the RadMini. Recommended tire pressure is indicated on the tire sidewall. Do not overinflate or
underinflate tires.
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Step 9: Always check that the battery is locked to the frame of the RadMini before riding. The Start-Up Procedure section of
this manual has more information on the key positions of the battery; on and locked to the frame, off and locked to the frame,
and off and unlocked (ready for removal from the frame).
Step 11: Review the remainder of the manual. Once the bike has been assembled per the above instructions and the assembly
video available from www.radpowerbikes.com/help, read, understand, and follow the procedures outlined in the remainder of
the manual before operating the bike.
NOTICE: If you have any questions regarding the assembly of your bike, contact Rad Power Bikes. If you are not able
to ensure all the assembly steps in the assembly video are performed properly, or you are unable to view the
assembly video, please consult a certified, reputable local bike mechanic for assistance in addition to contacting Rad
Power Bikes for help.
NOTICE: Ensure all hardware is tightened properly following recommended torque values and all safety checks in the
following sections are performed before the first use of the bike.
Do not extend any components including the handlebar stem, seat post, or seat saddle beyond any
minimum insertion marking etched into the components. Ensure that all hardware is properly
tightened (to the recommended torque values in the Recommended Torque Values table) and
components are secured before moving on to next step otherwise damage to the bike, property,
serious injury, or death could occur.
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Recommended Torque Values
Hardware Location
Hardware
Torque Required (Nm)
Handlebar Area
Handlebar Stem Clamp Bolts
15
Handlebar Area
Stem Faceplate Bolts
10
Handlebar Area
Brake Lever Clamp Bolt
6
Handlebar Area
Shifter Clamp Screw
6
Brakes
Caliper Adapter to Frame
6-8
Brakes
Caliper to Adapter
6-8
Brakes
Brake Cable to Caliper Clamp
6-8
Brakes
Disc Brake Rotor to Hub
7
Seat Post Area
Seat Angle Adjustment Bolt
20
Rear Dropout Area
Rear Axle Nuts
40
Rear Dropout Area
Rear Torque Arm Bolt
5
Rear Dropout Area
Derailleur Bash Guard Mounting Bolts
5
Rear Dropout Area
Derailleur Hanger Mounting Bolt
6
Rear Dropout Area
Derailleur Mounting Bolt
10
Rear Dropout Area
Derailleur Cable Pinch Bolt
6-8
Rear Dropout Area
Kickstand Mounting Bolts
8
Bottom Bracket and Crank Area
Bottom Bracket and Lockring
60
Bottom Bracket and Crank Area
Crank Arm Bolt into BB spindle
35
Bottom Bracket and Crank Area
Pedal into Crank Arm
35
Bottom Bracket and Crank Area
Chainring Bolts
10
Bottom Bracket and Crank Area
Controller Mounting Bolts
6
Fenders
All Fender Mounting Bolts and Hardware
6
12
Adjusting the Seat Height
For most users, the seat height should be set by placing the ball of the foot on the pedal when the crank is at its lowest point. In
this orientation, their leg should be almost fully extended, with a slight bend at the knee.
1) Open the quick release lever by swinging the lever open and outwards to about 180 degrees (depicted below, left).
2) You can now move the seat up and down by sliding the seat post in or out of the seat tube. Set the desired seat height.
3) After tightening the adjustment nut (opposite the quick release lever) on the seat post quick release properly, close the
quick release lever by swinging the lever back about 90 degrees until it looks like the image below at right, and the seat
cannot move up, down, to the left, or right.
Before using the bike, always check and ensure that the folding mechanism locks on the central frame hinge, handlebar
stem hinge, pedals, and seat post quick release lever are properly and securely locked. Check that they are correctly
secured before every ride and after every time the bike is left unsupervised, even for a short time. Otherwise, the central
frame hinge, handlebar stem, pedals, and/or seat post may suddenly shift or come loose and can result in loss of control,
damage to the bike or property, serious injury, and/or death.
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Adjusting the Seat Position and Angle
To change the angle and horizontal position of the seat:
1) Use a 6 mm Allen wrench to loosen the seat adjustment bolt (at right)
underneath the seat on the clamp positioned immediately underneath
the seat, above the rear wheel.
2) Move the seat backwards or forwards in the guide and adjust the angle
of the seat. A seat position horizontal to flat ground is desirable for most
riders. Do not exceed the limit markings on the seat rail, which show the
minimum and maximum horizontal movement allowed for this
component.
3) While holding the seat in the desired position, use an Allen wrench to tighten the seat adjustment bolt securely to the
recommended torque value.
NOTICE: Prior to first use, be sure to tighten the seat clamp via the seat adjustment bolt properly. A loose seat clamp or seat
post adjustment bolt can cause damage to the bike, property, loss of control, a fall, serious injury, or death. Periodically
check to make sure that the seat clamp is properly tightened.
NOTICE: Ensure seat post and seat are properly adjusted
before riding. DO NOT raise the seat post beyond the
minimum insertion marking etched into the seat post tube
(as shown at right). If the seat post projects from the frame
beyond these markings (shown far right), the seat post or
frame may break, which could cause a rider to lose control
and fall. Ensure the minimum insertion markings on the
seat post are inside the seat tube of the frame.
14
Adjusting the Suspension Fork
The RadMini comes equipped with an adjustable front suspension fork,
like the RadRover suspension fork pictured at right. These suspension
forks can move up and down up to 80 mm to cushion bumps in the riding
surface, which can make riding on a rough road or trail smoother and
more comfortable. Depending on a rider’s preference, the suspension fork
can be locked out as a rigid fork. The Lockout Lever, located on top of the
right side of the suspension fork (1, at right), can be used to completely
lock out the suspension fork’s travel, turning it into a rigid fork. A rigid fork
will typically yield higher efficiency while pedaling. To lock out the fork,
turn the Lockout Lever Knob counterclockwise until it stops. To unlock the
Lockout Lever, turn the knob clockwise until it stops. When the Lockout
Lever is unlocked, resistance can be adjusted by turning the Preload Adjustment Knob, located on the top of the left side of the
suspension fork (2, in the image above). To soften the ride, you can subtract resistance by turning the Preload Adjustment Knob
counterclockwise, in the direction of the small “-” on the knob. To make the suspension stiffer when going over bumps, add
resistance by turning the Preload Adjustment Knob clockwise, in the direction of the small “+” on the knob.
Rider Comfort
To obtain maximum comfort, rider should not overextend their arms’ reach when riding. To obtain the most comfortable riding
position and offer the best possible pedaling efficiency, the seat height should be set correctly in relation to the rider’s leg length
as briefly described above. The correct seat height should not allow leg strain from over extension and the hips should not rock
from side to side when pedaling. While sitting on the bike with one pedal at its lowest point, place the ball of your foot on that
pedal. The correct seat height will allow the knee to be slightly bent in this position. A bike fitting professional, such as a
certified, reputable bike mechanic who specializes in bike fit, should be consulted to ensure you have good fit.
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