This two piece set swaps in for the stock servo arm and steering arm on Kyosho motorcycle RC models, replacing plastic parts with a matched aluminium pair. The kit is specified for 23T servo splines (C9) and the steering arm C10 position when those labels are used on Kyosho motorcycle assemblies.
Fitment advice: ensure spline teeth are aligned before you tighten fixings, use the original mounting hardware where appropriate, and avoid excessive torque to protect aluminium threads. Check the servo spline engagement and the steering linkage at full throw to ensure there is no binding during suspension travel.
Setup notes: aluminium arms reduce flex under load and produce crisper steering feedback, useful when refining steering response or achieving repeatable centring. Regularly inspect screw threads and contact surfaces for wear and secure steel fasteners with thread locker if screws begin to loosen in service.
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