Whirlwind C4 User manual

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

Whirlwind – C4 – User Manual – P. 6
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

Whirlwind – C4 – User Manual – P. 7
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

Whirlwind – C4 – User Manual – P. 8
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.

Whirlwind – C4 – User Manual – P. 9
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.

Whirlwind – C4 – User Manual – P. 10
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.