This RC-scale replacement bearing fits the rear mount of the upper deck to secure the deck and raise torsional stiffness. It is intended for hobby racing and tuning use on BD11-family chassis and compatible MSR platforms.
By increasing rigidity at the rear upper-deck mount, the component helps limit rear deflection during corner loads, which can produce a smoother, more neutral turn-in on tracks where the rear tends to hook. This is a tuning part; actual handling change depends on overall chassis setup and track surface.
Install by removing the existing rear upper-deck bearing and fitting this unit in its place. Always check fitment against the supported models and make incremental adjustments to other chassis settings while evaluating handling differences.
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