Yokomo RP-036-20 Precision Pinion 20T Gear  [YOKRP-036-20]

20T machined pinion for precise gear tuning

This 20-tooth machined pinion is intended for electric pinion-and-spur systems, enabling fine adjustments to the final drive to influence acceleration and top speed without altering the motor.

Offered as a generic replacement, the pinion fits common spur-and-pinion configurations on electric R/C models. When fitting, confirm correct engagement on the shaft, set an even mesh with the spur using a slight gap across the tooth faces, and ensure the pinion is clamped securely to the motor shaft.

Use it when you need incremental gearing changes during setup or competition practice. Standard procedures include checking shaft diameter compatibility, re-inspecting mesh after initial runs, and keeping bearings and the spur gear in good condition to avoid uneven wear.