1/48 Pinion Gear 23T Compatible Motor Fit - Kyosho UM323C  [KY-UM323C]

Precision 23-Tooth Pinion for 1/48 Models

The Kyosho UM323C steel pinion features a 23-tooth profile tailored to 1/48 scale drivetrains. Acting as the motor pinion, it transmits torque to the spur gear, so careful mesh and alignment will preserve gear life and maintain smooth power transfer.

Use this pinion as a service replacement or when adjusting gear ratios to influence acceleration or top speed on micro chassis. Check motor shaft diameter and the pinion fastening style on your motor before fitting. Set a slight clearance at mesh to prevent binding, then tighten and test at low throttle to ensure proper engagement.

Routine upkeep involves inspecting teeth for damage, cleaning debris, and replacing the pinion if wear impairs mesh. If noise is a concern, also examine the spur gear condition and bearing play rather than altering the pinion surface.