Kyosho Motorcycle 25T Aluminium Servo Arm and C8/C10 Steering Arm KM025TM26 by GPM  [KM025TM26]

Aluminium servo and steering upgrade

This KM025TM26 two-piece set replaces the stock plastic control arms on Kyosho motorcycle models with aluminium parts, creating a stiffer connection between the 25T servo spline and the steering linkage. The kit includes arms in the common C8 and C10 footprints used on Kyosho motorcycle assemblies.

Fitting is simple on standard Kyosho setups: remove the original arm, locate the aluminium arm on the 25T spline, and fasten with the existing retaining screw or the original hardware. No special tools are needed beyond the usual hex driver for the servo screw.

Tuning benefit: aluminium arms cut down flex compared with plastic originals, giving crisper steering inputs and more consistent centring under heavy acceleration or braking. These parts are intended to improve control feel rather than change servo output or steering geometry.

Care tips: check spline engagement and screw torque after initial runs, monitor for wear, and use thread locker if that was applied to the original hardware. If models see moisture, apply a light corrosion inhibitor to exposed aluminium surfaces.