Yokomo B12-003RS Graphite Rear Upper Deck for MSR-BD12/MSR-BD12A  [B12-003RS]

Overview of the Graphite Rear Deck

This rear upper deck is a graphite replacement built for MSR-BD12 chassis variants. By removing 1.5mm of thickness compared with the standard deck, the plate reduces local stiffness at the rear, shifting handling toward a gentler, more controllable steering feel.

Compatibility is limited to MSR-BD12 and MSR-BD12A platforms; the unit installs in the same mounting positions as the original component. It is intended as a tuning piece for mid-corner balance adjustments rather than a major structural enhancement.

Drivers and setup specialists select thinner graphite decks like this to moderate abrupt rear reactions and make steering inputs more predictable without altering primary suspension settings.

This graphite rear upper deck is a straightforward tuning option to reduce rear-end stiffness and refine steering balance on MSR-BD12 chassis without replacing suspension hardware.