X4 CFF Carbon-Fiber Fusion Upper Arm - Medium - FL/RR KIT Dedicated receiver RA-42 requires purchase

Dedicated receiver RA-42 requires purchase separately

metals and more  Specifications: ON / OFF switch

​ Timing Profiles 5 Preset - 2 Custom <<video>>

Guarantees users the effective heat dissipation and dust prevention

and keeps dirt and dust out

X4 CFF Carbon-Fiber Fusion Upper Arm - Medium - FL/RR KIT Dedicated receiver RA-42 requires purchaseThe unique CFF suspension arms are an elegant engineering achievement that look great and perform even better on the track. Using XRAY's own newly developed manufacturing process, a carbon fiber arm and composite arm are molded together using a fusion process to produce a single CFF suspension arm. The benefits of the CFF arms are tremendous. The thickness of the inner carbon fiber plate determines the hardness and flex of the arm. The composite