The XRAY 354255 carbon center mounting rear brace is an RC-scale top deck component designed to work with the aluminium center upper brace mounting plate #354290 to modify rear chassis flex. Produced from precision machined carbon fibre, the part provides a controlled reduction in rear stiffness that can improve rear traction and yield more consistent handling where extra chassis compliance is needed.
Installation occurs at the chassis centreline where the brace attaches to the existing centre upper plate; when used with the specified aluminium plate the combined stack alters the torsional response of the rear section. This product suits drivers seeking a precise tuning option to relax rear chassis behaviour on lower-traction surfaces without the weight drawbacks of heavier alternatives.
From a setup viewpoint, the brace rebalances chassis twist against suspension movement: a softer rear chassis tends to allow the rear tyres to better track surface variations, improving rear bite during corner exit and helping preserve consistent lap times. Employ this part as one element in a broader tuning plan, together with shocks, tyre choice, and anti-roll adjustments as required by conditions.
Use the XRAY 354255 when you want a controlled shift to a more compliant rear end; pair it with the #354290 aluminium centre upper brace and test changes incrementally on the circuit to find the preferred balance.
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