Kyosho Motor Pinion 12T #45 Steel KM012TS by GPM  [KM012TS]

#45 steel 12-tooth pinion for Kyosho motorcycle motors

Offered as 1 pc, this 12T pinion is a practical replacement part for scale Kyosho motorcycle motor applications. The component is fabricated from #45 steel and matches the 12T form factor found on many model motorcycle motors.

To fit the pinion, slide it onto the motor shaft, set tooth engagement with the spur or gearbox input and tighten the set screw. Always confirm shaft diameter and set screw position to avoid misalignment or premature wear.

A steel 12T pinion typically provides predictable mesh characteristics and superior wear life compared with softer materials, which will affect throttle response and top speed based on your final gear ratio. Use this pinion where a robust, standard-size motor gear is required for Kyosho-compatible motor layouts.