Rear Spur Gear Replacement


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 PlierNWS 175-42-A21 Circlip pliers angled for external circlips, 165.0 mm 

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.

Crank Removal


Step 2 Kickstand Removal

For this step, Kindly refer the Housing removal by clicking the link below.

Kickstand Removal


Step 3 Housing Removal

For this step, Kindly refer the Housing Removal by clicking the link below.

Housing Removal


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.

Housing Installation


Step 8 Re-installing Kickstand

For this step, Kindly refer the Kickstand installation by clicking the link below.

Kickstand Installation


Step 9 Re-installing Crank

For this step, Kindly refer the Crank installation by clicking the link below.

Crank Installation


End of Article

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