Kyosho Motorcycle Alloy Middle Gear by GPM KM153  [KM153]

Alloy middle gear for Kyosho motorcycles

This GPM KM153 is an RC-scale alloy middle gear supplied as 1 pcs and intended for Kyosho motorcycle models. It is an aftermarket replacement part designed to sit in the driveline between the motor pinion and the spur gear inside the gearbox, serving the role of transferring torque while resisting wear.

Installation notes: confirm correct gear mesh and axial alignment when fitting into the gearbox, use the original shaft and retaining hardware, and check clearance to adjacent components such as ball bearings and the spur gear. Avoid forcing parts; gentle rotation while adjusting mesh helps seat the gear correctly.

Tuning and maintenance guidance: maintain light, appropriate gear lubricant on mating surfaces, inspect for play at the bearing interfaces, and verify motor timing and ESC settings remain unchanged after installation. Because this is an alloy component, avoid over-tightening mounting fasteners to prevent stress on the part or the gearbox housing.