Racers looking to refine chassis behavior will appreciate the XRAY 301086 X4F Carbon Upper Deck. Built for the X4F line, the split rear layout improves adjustable flex and makes on-track trimming more predictable. The 2.0mm carbon construction balances strength and low weight, helping maintain responsiveness while resisting wear for competitive use.
A practical choice for racers wanting finer tuning options, the XRAY 301086 Carbon Upper Deck improves flexibility control and chassis balance on X4F cars.
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