Graphite Rear Upper Deck for MSR-BD12 Series B12-003RS by Yokomo  [B12-003RS]

Rear Upper Deck Details for MSR-BD12

This graphite rear upper deck is a purpose-made replacement for MSR-BD12-family chassis. Being 1.5mm thinner than the standard deck, it softens the local rear chassis stiffness to temper quick transient reactions and encourage smoother steering behavior.

The part fits MSR-BD12 and MSR-BD12A configurations and installs using the same mounting hardware and procedure as the factory deck. It should be treated as a tuning component focused on mid-corner balance rather than a structural upgrade for increased rigidity.

Many racers use thinner upper decks to reduce oversteer onset and to make chassis reactions more linear, which helps deliver consistent steering feedback lap after lap.

As a subtle tuning piece, this graphite rear upper deck offers a simple route to soften rear-end rigidity and refine steering balance on MSR-BD12 platforms without altering core suspension geometry.