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

12T #45 steel pinion for Kyosho motorcycle motors

This single 12T pinion is an economical replacement for scale Kyosho motorcycle RC motors. Made from #45 steel and supplied as 1 pc, it follows the common 12T profile used on many model motorcycle motor shafts.

Fitment is straightforward: slide the pinion onto the motor shaft, align tooth mesh with the spur or gearbox input, then secure the set screw. Verify shaft diameter and set screw position before tightening to avoid mis-mesh or slippage.

Choosing a 12T steel pinion gives a consistent contact pattern and better wear resistance than softer alloys, which will influence acceleration and top speed depending on the final gear ratio. Use this part when a rugged, standard-size motor pinion is required for Kyosho-style motorcycle motor setups.