MSR-BD12 Compatible Rear Upper Deck B12-003RS Yokomo Graphite  [B12-003RS]

Rear Upper Deck Fitment Summary

This graphite rear upper deck is designed as a direct replacement for MSR-BD12 chassis variants. With a 1.5mm reduction in thickness versus the standard plate, the component reduces rear stiffness to yield a more progressive steering characteristic.

Fitment covers both MSR-BD12 and MSR-BD12A configurations; installation replaces the original rear upper deck using the same screw points and assembly routine. The item is aimed at fine tuning mid-corner balance rather than increasing overall chassis rigidity.

Model-makers and drivers select thinner decks like this to smooth transient responses and achieve a steadier, more predictable steering feel without making major suspension changes.

This graphite rear upper deck gives a simple, targeted method to soften rear-end stiffness and hone steering balance on MSR-BD12 platforms without altering main suspension components.