The XRAY 303182-M rear lower suspension arm is built for X4 cars that need a balanced feel on tarmac. Produced with Carbon Fiber Fusion (CFF), this part delivers a controlled combination of resilience and compliance for track use.
Set to a medium hardness, this arm increases tyre contact and refines handling on asphalt. The shock sits centrally on the arm to even out loads and sharpen mechanical grip and turn-in behaviour.
Medium hardness gives more flex than hard arms, which helps in warm track conditions and makes the car more tractable for drivers tuning balance and traction.
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