Kyosho Motor Cycle Delrin Middle Gear by GPM DKM153  [DKM153]

Delrin middle gear overview

This Delrin middle gear is an aftermarket replacement part produced by GPM for Kyosho motor cycle models, intended as an RC-scale drivetrain component. It replaces the stock middle gear inside the motorcycle transmission stack and is used where a durable, lower-friction plastic gear is preferred for smoother gear mesh and reduced noise.

Installation is straightforward for hobbyists familiar with motorcycle gear trains: disassemble the gearbox section to access the middle gear, swap the gear while checking alignment with the pinion and spur gears, and verify backlash and mesh under rotation before final reassembly. Use appropriate thread lock and avoid over-tightening fasteners that can deform plastic parts.

In tuning and maintenance the Delrin middle gear serves to reduce wear on mating metal gears and to provide a slightly quieter mesh compared with harder plastics. Regular inspection for wear, correct bearing seating, and light lubrication at the gear mesh will prolong service life while preserving reliable power transfer from the motor to the drivetrain.