Kyosho Motorcycle 13T Steel Motor Pinion KM013TS for Upgrades by GPM  [KM013TS]

13T steel pinion tailored to Kyosho motorcycle models

This 13-tooth motor pinion serves as a direct replacement or tuning upgrade for Kyosho motorcycle models that accept a 13T motor gear. It is manufactured from steel #45 and supplied as a single piece so you can swap a worn gear without changing motor or gearbox housings.

A 13T pinion affects final drive ratios and is commonly chosen to tune acceleration versus top speed depending on your spur gear. Steel construction provides increased wear resistance and consistent tooth engagement under regular use when compared to softer materials.

Fitting advice: remove the motor per your model's procedure, slide the pinion onto the motor shaft ensuring correct axial positioning and mesh with the spur gear, then fasten using the original method. Turn the drivetrain by hand to confirm smooth engagement and absence of binding before running the motor.