YR-10F Graphite Front Upper Arm Support, YR-10US by Yokomo  [YR-10US]

Durability-Focused Front Upper Arm Support for YR-10F

This graphite front upper arm support is engineered for 1/10 scale formula cars and specifically fits the YR-10F chassis. As an aftermarket replacement it offers a stiffer mounting area that tends to outlast standard plastic parts while refining steering input.

The unit installs at the front upper arm pivot and is compatible with the original arm pins and mounting hardware used on YR-10F setups. Fitting usually requires standard front suspension access, a trial fit to confirm alignment, and a final check that the arms move freely after refit.

In tuning terms, installing graphite increases local stiffness at the upper link, helping to limit flex under heavy load and producing steadier geometry in corners. Drivers choose this upgrade to maintain consistent camber and roll center behaviour when pushing the chassis hard.