Getting ready
It is advised to wear suitable protective personal equipment (PPE) and be in safe working environment. Before starting this maintenance process, below tasks must be completed:
- Disconnect the battery / power supply
Tools required
Circlip Plier | ![]() |
Parts required
You will need to prepare the listed parts for this maintenance procedure.
Replacement Rear Spur Gear x 1 unit | ![]() |
Steps to follow
Step 1 Crank Removal
For this step, Kindly refer the Crank removal by clicking the link below.
Step 2 Kickstand Removal
For this step, Kindly refer the Housing removal by clicking the link below.
Step 3 Housing Removal
For this step, Kindly refer the Housing Removal by clicking the link below.
Step 4 Removing old Rear Spur Gear
4.1 Using a circlip plier, remove the 12mm circlip on the Driven Sprocket. | ![]() |
4.2 Once the circlip is removed, gently slide out the Rear Spur Gear on the other side. Rest the Driven Sprocket & chain on the Gearbox. | ![]() |
Step 5 Installing new Rear Spur Gear
5.1 Collect the replacement unit of Rear Spur Gear and start aligning it into its designated hole. | ![]() |
5.2 Continue to install the Rear Spur Gear until it is fully flushed. Make sure that all gear teeth are meshed perfectly with the teeth on the wheel. | ![]() |
5.3 On the other side of the bike, insert the Driven Sprocket back into the new Rear Spur Gear. Ensure that the sprocket is installed until its fully flushed, indicated by a visible groove for 12mm circlip. | ![]() |
5.4 Re-install the 12mm circlip into its | ![]() |
designated groove to secure the sprocket. | ![]() |
Step 6 Testing new Rear Spur Gear
6.1 Visually inspect the installed sprocket and ensure that all gear teeth are hooked perfectly. | ![]() |
6.2 Spin the rear wheel and ensure that the installed Rear Spur Gear is rotating smoothly. | ![]() |
6.3 Finally, twist the throttle or rotate the crank. Make sure that the Rear Spur Gear is rotating smoothly without any further issue. | ![]() |
Step 7 Re-installing Housing
For this step, Kindly refer the Housing installation by clicking the link below.
Step 8 Re-installing Kickstand
For this step, Kindly refer the Kickstand installation by clicking the link below.
Step 9 Re-installing Crank
For this step, Kindly refer the Crank installation by clicking the link below.