Racers seeking steadier rear behaviour should consider the XRAY 303182-G Graphite Rear Lower Arm for the X4. The CFF construction offers a tuned mix of durability and measured flex to support consistent lap times.
Graphite is selected for its predictable flex characteristics on carpet and high-traction asphalt, helping to limit sudden loss of momentum while improving exit traction from corners.
With the shock placed on the arm centerline, load distribution improves and mechanical traction increases under compression, giving crisper, more controllable rear response.
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