This 2pcs set replaces the stock servo arm and steering arm on Kyosho motorcycle RC models, providing a direct aluminium alternative to plastic parts. Supplied as a matched pair, the set is intended for 23T servo splines (C9) and steering arm position (C10) where those designations apply on Kyosho motorcycle assemblies.
Installation focus: confirm spline alignment before tightening, use the original mounting hardware and avoid over-torquing to prevent thread damage on aluminium components. Verify fit on the servo spline and steering linkage at full travel to ensure free motion throughout suspension and steering range.
Tuning role: swapping to aluminium arms reduces flex under load and gives crisper steering feedback, useful when dialing steering response or syncing steering centring. Regularly inspect screw threads and contact surfaces for wear, and use thread locker on steel fasteners if you notice loosening during runs.
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