XRAY X4-2026 CFF2 Rear Lower Arm - Medium - Left XR-303187-M

The rear lower arm is one of those components where material choice really matters. This CFF2 (Carbon Fiber Flex 2) arm for the XRAY X4 2026 brings a specific flex characteristic that helps the rear suspension work more effectively through different track conditions. The medium length gives you a balanced setup that works well as a starting point, and you can always adjust from there based on what the track demands.

Carbon fiber construction keeps the weight down while maintaining the strength you need for competitive racing. The left side specific design means the arm is optimized for its position on the chassis, with mounting points and geometry that match exactly what XRAY engineered for the X4 2026 platform. This isn't a universal part that kind of fits, it's made specifically for this car.

When you're tuning your suspension, arm flex plays a bigger role than a lot of people realize. Too stiff and the car can feel nervous and unpredictable over bumps. Too soft and you lose precision in the corners. The CFF2 material specification hits a sweet spot that gives you responsive handling without sacrificing stability. You get good mechanical grip without the car feeling loose or disconnected from the track surface.

Installation is straightforward since this is a genuine XRAY component. It uses the standard mounting hardware and fits directly into the X4 2026 chassis without any modifications. Whether you're replacing a worn arm or experimenting with different flex characteristics to improve your setup, this part gives you another option in your tuning toolkit.