GPM KM012 Kyosho Motorcycle Gearbox  [KM012]

Alloy gearbox housing for Kyosho motorcycle drivetrains

This RC alloy gearbox housing is supplied as a single piece and is designed to replace the standard plastic gearbox on Kyosho scale motorcycles. It provides a metal alternative at known wear points to extend service life where the stock housing shows fatigue.

Fitment targets Kyosho motorcycle platforms noted in the product listing; check the existing gearbox dimensions before you install. The alloy housing maintains the original internal layout and mounting bosses so it can be used as a direct replacement where the chassis and gear train align.

To fit the unit remove the original gearbox, transfer internal gears and fixings into the alloy case, then refit the assembly in the chassis. The stiffer housing gives a more stable mounting surface that can help reduce flex under heavier loads and keep gear mesh more consistent when adjusting drivetrain settings.

Choose this alloy gearbox when replacing worn housings or when a metal upgrade is needed to support drivetrain tuning and longer term durability on Kyosho scale motorcycles.