This graphite molded rear hard suspension arm is produced for the optional RTC (Rear Toe Control) configuration on BD8 2018 chassis. It conforms to BD8 2018 rear geometry, featuring a 54mm in/out suspension pin spacing and a 40.5mm shock pivot.
Choose this arm when you require a more rigid rear link to limit hub flex and maintain toe settings during heavy loads. It replaces the stock rear arm and works alongside RTC components to permit more precise toe adjustment without modifying other suspension geometry.
Setup tips: a harder rear arm will usually crisp up turn-in and can raise lap-to-lap consistency on high-traction surfaces while increasing the rear's tendency to snap on loose layouts; after installation check roll centre and shock angle and use the original mounting hardware unless the RTC kit indicates otherwise.
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