Kyosho Motorcycle Alloy Main Gear KM155 Precision Replacement by GPM  [KM155]

Alloy main gear designed for Kyosho motorcycles

This aftermarket alloy main gear is an RC-scale replacement component for Kyosho motorcycle platforms, supplied as 1 pcs. It suits small motorcycle drivetrains where the main or spur gear needs replacing or upgrading as part of maintenance or tuning.

Use this aluminium main gear to renew worn teeth, retain accurate gear mesh, or to change ratios during setup. The metal construction preserves a consistent tooth profile and resists light wear better than many plastic alternatives while remaining specific to model transmissions.

Installation advice: verify gear mesh and axial alignment with the motor pinion and gearbox output, confirm shaft seating and secure the gear with the original retaining hardware, and rotate the drivetrain by hand to check for smooth engagement before powering the model. Adhere to the bearing and mounting instructions in your Kyosho manual.