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

Precision 20T pinion for RC motors

This RC-scale accessory is a 20-tooth pinion intended for use in electric pinion and spur gear systems. It serves the basic role of changing final drive ratio, allowing fine adjustments to acceleration, top speed, and motor load without altering the motor itself.

As a neutral replacement part, the pinion is meant to match standard pinion-spur arrangements on electric R/C models. When fitting, check shaft engagement and mesh with the spur, maintain a small, even clearance across the tooth face, and verify secure fastening of the pinion to the motor shaft.

Use this part when you need incremental gearing changes during setup or track tuning. Typical installation considerations include confirming shaft diameter fit, rechecking mesh after a few runs, and ensuring the surrounding bearings and spur gear are in good condition to avoid uneven wear.