This aluminum collar fits the upper arm support on the YR-10F chassis and acts as a camber shim for 1/10 scale touring car setups.
Fitted around the upper arm pivot, the collar provides either 1.0 or 2.5 degrees of camber depending on the mounting face, helping to stabilise the arm position and add local stiffness without altering other suspension components.
The part is made to improve repeatability of arm placement during rebuilds and to make small camber tweaks quick to perform during setup or when dialing corner balance.
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