The Yokomo YX-22L rear roll shock mount is an aluminium left-side mounting piece designed for 1/12 scale YR-X12 competition chassis. It secures the roll damper to the rear chassis and defines the attachment point used when adjusting roll resistance and rear balance.
Fitting the YX-22L replaces the original left mount and uses the same chassis mounting positions on both YR-X12 and YR-X1219. During reassembly, verify alignment and that the damper clears adjacent parts so the linkage moves freely through its range.
From a setup viewpoint the mount alters how the roll damper transmits loads into the rear suspension geometry, making it a useful service or upgrade item for drivers refining body roll and transient behaviour in competitive 1/12 classes.
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