Yokomo YX-03 Graphite Upper Brace for YR-X12 Performance  [YX-03]

Graphite brace engineered for the YR-X12 chassis

The Yokomo YX-03 graphite upper brace is an aftermarket component made for 1/12 competition machines and tailored to the YR-X12 chassis form. It replaces the original upper brace area and retains the factory attachment points for a direct fit.

The upgrade raises torsional stiffness of the upper structure, changing how the chassis reacts under load to refine steering feel and weight transfer. This effect is achieved without altering the suspension pick-up points, so tuning remains focused on shocks and roll control devices.

Fitting uses the YR-X12's existing mounts; no chassis modification is required. Confirm the condition of existing screws and alignment during assembly to avoid introducing stress through uneven preload.

Routine checks are simple: look for surface damage or hole wear after events and renew any fasteners that have lost thread integrity. Keeping the component free of grit will help maintain predictable behaviour during setup and race days.