Comfort Assembly Guide

The 4 Major Steps to Getting Your Bike Ready to Ride:

Charge Comfort Electric Bike Assembly Guide

1. Adjust Handlebars

How to adjust handlebars on an electric cruiser bike

2. Install Front Wheel

How to install the front wheel on an electric hybrid bike

3. Flip Down Pedals

How to install flip down pedals on electric bike

4. Adjust Seat Height

How to properly adjust the sea on an electric bike

Getting Your Bike Ready for Assembly.

 1. Remove the protective cardboard packaging that is on top of the bike and any that may be on the frame.

2. Remove the front wheel and set aside.

3. Leave bike in tray for now.


Leave in the tray

At home assembly of Charge Comfort electric bike

 4. Remove the red tie that holds the chain to the chainwheel.


Remove Red Tie

Direct to consumer electric bike assembly instructions

5. Open the parts box.

  1. Battery Charger

  2. Charging Cord

  3. Tire Pressure Sensors

  4. Battery Keys

  5. Axle Rod and Nut

  6. Torque Wrench


Parts box for building your electric bike

6. Ensure the power is OFF before continuing assembly by confirming the handlebar display is blank. (If power is on, press and hold the power button until the display shuts off.)


OFF (ready form assembly)

Turn off power on Bafang electric cruiser bike

Power button

Power Button
Power button for Bafang electric bike

Key Parts of the Bike Referenced in This Guide:

Key Components of Charge Comfort electric bike
Electric bike cockpit diagram

1: Adjust Handlebars

This step is particularly important to your safety. Please see the assembly video at as well as ADJUSTMENT INSTRUCTIONS: Adjustable Stem Instructions, in your Charge Bicycle Owner’s Manual.

1. Locate the safety release button atop the handlebar stem. Using your thumb, slide the safety release button FORWARD.


How to adjust stem on electric bike

 2. While holding the safety release forward, pull the stem release lever up until it stops.


Instructions for adjustable e-bike stem

3. Standing alongside the bike, put one foot against the bike box tray to help keep the box (and bike fork) stationary as you turn the handlebars.

Electric hybrid bike assembly instructions

4. Rotate the handlebar 90 degrees clockwise until the handlebars are perpendicular to the bike frame.

NOTE: Make sure to keep the fork stationary—with the front light pointing forward—while turning the handlebars.


How to secure handlebars while assembling electric bike

5. Push the stem release lever back down to lock the handlebars into place. 


Electric bike handlebar adjustment

2: Install Front Wheel

This step is particularly important to your safety. Please see the assembly video at as well as this Quick Start Guide.

1. Lay the cardboard block that says “Temporary Wheel Stand” flat on the ground with the printed side facing up.

2. Insert the front wheel into the cutout marked “Insert Front Wheel”. Verify the disc brake rotor is on the side marked “Brake Disc This Side”

NOTE: The front wheel should now stay upright on its own in the temporary stand.


How to put on an electric bike front wheel

3. Lift the bike out of the tray and place with the front forks gently on the ground, making sure the bike is stable

4. Place the front wheel and the wheel stand in front of the bike. Verify the front wheel disc brake rotor is on the same side as the kickstand. 


Setup electric bike and wheel for assembly

 5. Locate the front fork spacer and place foot on top.


Electric hybrid bike front wheel assembly

6. Holding the handlebars, lift the bike up to remove the spacer.


Removing suspension fork space from electric cruiser bike

7. Lift the bike over to the front wheel.

NOTE: The disc brake rotor on the wheel should be on the same side as the kickstand.


Lifting electric bike onto front wheel

8. Lower the fork onto the front wheel until the axle is fully-engaged in the fork end.

NOTE: While the wheel axle does not extend past the fork end, it is enough for the fork to rest securely, as pictured



How to properly line up front wheel and electric bike suspension fork

9. While holding the bike upright, put the kickstand down with your foot.

The bike will now safely rest on the kickstand.


How to use kickstand on an electric bike

10. Locate the metal axle rod and axle nut from the parts box.

NOTE: Always screw the axle nut onto the rod with the larger end first.


Preparing metal axle and nut for at home electric bike build

11. While facing the front of the bike (looking at the headlight), use your right hand to insert the metal rod through the axle from brake disc side.


How to insert the axle in your Charge Comfort electric bike

12. With your left hand, screw the axle nut onto the axle rod, making sure the large end of the nut goes onto the rod first.


How to properly tighten axle of an electric bike

13. Turn the axle nut clockwise until finger tight.

14. Locate the Torque Wrench (from the parts box)


8Nm torque wrench for electric bike

15. With your left hand, hold the bike upright and centered (perpendicular to the floor).

16. Push the frame down to ensure the fork ends are fully seated on the axle.


Charge Comfort electric cruiser bike assembly instructions

17. Holding the bike upright with one hand, use your free hand to insert the Torque Wrench into the axle on the brake disc side.


Preparing to tighten electric bike axle

18. Turn the Torque Wrench clockwise until you hear and feel a click. This indicates the correct torque has been achieved.

NOTE: You may need to apply a good deal of pressure to hear and feel the click.



How to properly tightening electric bike axle with torque wrench

3: Flip Down Pedals

1. Flip each pedal down (or up) until it clicks.

NOTE: You can always flip up the pedals by pulling on the lever with your fingers as you move the pedal to the upright position.



Adjusting folding pedals on an electric bike

Pull lever to flip closed

Flip down pedals on Charge City Electric Bike

4: Adjust Seat Height

 1. Using the Torque Wrench, loosen the seat post clamp bolt (turning counterclockwise) until the seat post can move.

NOTE: You do not need to remove the bolt from the clamp.


How to loosen electric hybrid bike seat to adjust height

 2. Slide the seat to your desired position. See Diagram A for guidance on finding the right seat height.

WARNING: Do not raise the seat above minimum insertion line marked on the seat post.


How to find the right seat height on your Charge E-Bike

Diagram A – Find the right seat height

To find a comfortable seat height:  While sitting on the bike, move one of the pedals to the 6 o’clock position, place your heel on the pedal. 

Adjust the seat higher or lower until your knee is just slightly bent without having to shift around on the seat.

NOTE: Do not leave kickstand down when sitting on the bike. The kickstand is not designed to hold up the weight of a rider.

Diagram A

How to determine proper leg extension while riding your electric bike

3. Ensure the seat nose is in-line with the bike frame.


How to ensure your electric bike seat is lined up correctly before tightening

4. Secure the seat by turning the bolt clockwise until you hear and feel the Torque Wrench click



How to use your torque wrench to tighten your Charge Comfort electric cruiser bike seat


Charge Bikes feature a valve cap sensor, so you always know when it’s time to add air. The sensors are included in your parts box. Simply screw the sensors onto the valve stems to quickly verify air pressure.

Green is good to go
Red means add some air
How to check air pressure in your electric bike tires


Register Your Bike

Register your bike and activate your warranty