This RC-scale spring fits the front lower A-arm of the Yokomo R12/GT series and is geared toward use on carpeted surfaces. It replaces the stock front lower arm spring and supplies a spring rate tailored for carpet track handling.
Marked R12-10S1, the spring is a direct-fit for R12/GT front lower A-arm assemblies. Fitting involves removing the lower arm, exchanging the spring element, and refitting the assembly so the suspension returns to the original geometry.
On the setup side the R12-10S1 influences front-end compliance and the car's initial turn-in characteristics on carpet. Implement it when dialing front traction and steering response, and test changes step by step to understand their effect.
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