This is an aluminum right-side rear roll shock mount designed for the 1/12 competition chassis YR-X12. The part replaces the standard right rear roll mount and is intended to interface with the existing rear roll shock location on the YR-X12 family of cars.
Functionally the mount changes how the rear roll damper attaches to the chassis, giving a fixed, rigid mounting point that helps the rear end respond to roll inputs. In practice it is used as part of tuning the rear roll characteristics, allowing drivers to adjust how quickly the rear end reacts during cornering and weight transfer on track.
Installation notes: check alignment and clearances with the existing rear roll shock and adjacent suspension components before final assembly, confirm the right-side orientation, and verify fit on YR-X12 variants to ensure correct operation.
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