Whirlwind – C4 – User Manual – P. 1
C4 Manual
Whirlwind – C4 – User Manual – P. 2
Contents
1.! Packing List!................................................................................................................................................!3!
2.! Assembly Instructions!...........................................................................................................................!4!
3.! Display Information!.................................................................................................................................!7!
4.! Battery Removal!.......................................................................................................................................!8!
5. How to carry!................................................................................................................................................!9!
6. Safety Measures!.....................................................................................................................................!10!
7. General Advice!.......................................................................................................................................!11!
8. Battery and Charging!...........................................................................................................................!12!
9. Technical Parameters!..........................................................................................................................!13!
Whirlwind – C4 – User Manual – P. 3
1. Packing List
1 X C4 E-Bike
1 X Saddle and Seat
1 X User Manual
1 X Charger
2 X Mudguards
Whirlwind – C4 – User Manual – P. 4
2. Assembly Instructions
!
2-1. Unfold the bike frame
Whirlwind – C4 – User Manual – P. 5
2-2. Fasten the lock to secure the frame in place
2-3. Unfold Headstock
a. Hold the bike, unfold the stem upright, and ensure
it is in line with the below part
b. Fasten the stem folder upwards until you hear a
click
2-4. Install the handle
a. Put the handlebar inside the holder as shown,
fasten the holder and tighten screw.
b. Adjust the handlebar angle and position to finish
installation and make sure the handlebar is
tightly secure
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2-5. Install the Seat post
a. Loosen the Seat post clamp and hold the frame
to install the saddle
b. Place the saddle at a suitable height and
ensure the seat post clamp is within the max
height line on the seat pole.
2-6. Unfold the Pedals
a. Holding on to the bike frame, unfold the pedal
by pressing the pedal inwards first and then
unfold as shown
b. To fold the pedals again, Press inward and
then upwards
2-7. Turn on Power
a. Charge the battery before first use by plugging
the charging cable into the charging socket of
the bike (which can be found on the side of the
bike
b. Hold ‘M’ Button down to start the bike
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3. Display Information
3-1. Buttons:
a. Button M: Hold down to turn on/off power;
Single press to change display: trip
mileage/total mileage/running time
b. Button +: Hold down to turn on/off front light;
Single press to increase speed grade
c. Button -: Single press to decrease speed
grade
3-2. Gear Options:
a. Gear 0: Riding without power support
b. Gear 1: Riding with pedal assistance (Speed
12km/h – 7mp/h)
c. Gear 2: Middle Speed (18km/h – 11mp/h)
d. Gear 3: High Speed (25km/h – 15.5mp/h)
Speed
Indicator
Button
Options:
Gear Indicator
Battery Life
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4. Battery Removal
The Electric bike will have the battery already inside of the main shaft so there is no need to install it. However,
please see instructions below showing how to remove the battery for maintenance.
4-1. Turn off the power, unlock the frame by lifting the
folder lock as shown
4-2. Unfold the frame by turning each end in separate
directions. To unlock the battery with screwdriver,
loosen the screws on plate and bottom of frame
4-3. Remove the charging terminal cable, pull out battery
box from the main frame.
4-4. To re-install the battery, install the charging port
cable, push the battery into the main frame, fix the
charging port with hot melt gun , then lock the battery
using the screwdriver, unfold the bike and lock the
frame using the Folder lock.
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5. How to carry
Once the bike has been folded, you can easily transport it in a variety of ways. It can be carried as shown, but also
be pushed.
This makes it ideal for commuting in heavily congested areas.
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6. Safety Measures
Always ride the bicycle with both hands on the handlebar.
Ensure the vehicle speed is safe for you and for others and be ready to stop
at any time when driving.
Never ride on dangerously uneven surfaces such as elevators or stairs.
Avoid slippery roads. For example, avoid icy roads or riding in heavy rain.
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7. General Advice
7-1. In case of accident and injury, make sure you
wear a helmet, gloves, elbow pads, kneepads
and other protection gears before riding
7-2. Safety check: Check your C4 bike battery and
bike conditions before riding
7-3. If you must ride when it’s raining or snowing,
ride at a low speed and keep a longer distance
from the vehicle in front of you in case of
emergency stops
7-4. Kids under age 12 are advised not to ride the
C4 bike
7-5. Do not ride on slippery road conditions -
especially on snowy and watery roads
7-6. Do not ride on slopes over 15°
7-7. Avoid sudden acceleration and deceleration.
Do not lean forwards or backwards while riding
and keep it at a limited speed
7-8. When battery runs low, keep a low constant
speed and charge the battery at any chance
you have
7-9. If a fall is inevitable always put your own safety
before the bike
7-10. In case of any emergencies, keep both of your
hands on the handlebar while riding
7-11. Do not store your bike in the boot of your car in
hot weather
7-12. Have a full understanding of the local traffic
regulations before you hit the road
7-13. Keep an eye on the surroundings, ride in a
controllable condition and avoid any collisions
that might occur
7-14. Keep a safe distance when riding alongside
other people. Do not ride side by side on the
road
7-15. Do not ride in dark environments. If necessary,
lower you speed or stroll your bike
7-16. Do not ride backwards or do any actions that
might endanger yourself and others while riding
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8. Battery and Charging
8-1. Charging between the temperature range 0°C-
45°C and discharging between -20°C-60°C,
keep the battery dry
8-2. Keep the battery away from acid, alkaline,
watery, flaming, heating and high temperature
environment
8-3. Charge the battery with the equipped adaptor
and charger, charging time must not exceed 6
hours, charging current must not exceed 2A
8-4. If the battery is not to be used in a long time,
keep the battery in a dry and cool environment,
and charge it for 2 hours every two months
8-5. Charge according to the manual requirements
8-6. Charge in a dry and cool environment, do not
charge in closed or high temperature areas
8-7. Unplug the charger when the charging is done,
do not plug the charger to power source while
not charging
8-8. Plug the battery first, then connect the power
source when charging, after charging disconnect
the power source and then unplug the charger
8-9. If the charger indicator stops working or the
charger overheats, unplug the charger
immediately and repair or replace the charger
8-10. In Keep the charger away from fluids while
using and when storing and avoid any
penetration to the charger
8-11. Try not to carry the charger around with your
bike. If you must, make sure it’s well protected
and store it in your tool box
8-12. Avoid the battery being fully discharged when
using
8-13. Do not disassemble or replace any parts of the
charger by yourself
8-14. Do not put the battery in any high places where
it may fall to the ground, in case it may cause
battery leakage or overheating that could lead to
fire
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9. Technical Parameters
Drive mode
Pedal-Assisted
Weight (kg)
16
Max Speed (mph)
>15.5
Max Range (Miles)
>30
Max Climbing Angle (°)
15
Battery Capacity
36V / 5.2AH
Battery Type
Lithium
Battery Brand
LG
Charge time (hours)
3-4
Max Loading (kg)
110
Size (mm)
(W) 1240 x (D) 540 (H) 1030
Working Temperature (°C)
-20 ~ 60
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