Designed as a direct replacement or tuning option, this 13-tooth motor pinion fits Kyosho motorcycle models that accept a 13T gear. The component is made from steel #45 and supplied as 1 pc so you can replace a worn pinion without altering motor or gearbox housings.
Choosing a 13T pinion alters the overall gear ratio, impacting acceleration and top speed depending on the spur gear you pair it with. Steel material increases resistance to wear and helps keep consistent tooth engagement under normal running conditions.
Simple installation: remove the motor following your model guidelines, slide the pinion onto the motor shaft with correct alignment and mesh, then secure it using the original fastener. Manually rotate the drivetrain to confirm smooth mesh and freedom from binding before powering up.
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