The XRAY 302144-S - X4 Soft Upper Arm for Inner Shock Position is built to refine steering response and increase mechanical traction. Made from Carbon Fiber Fusion (CFF), this soft upper arm balances flexibility and durability while keeping clearance for the inner shock mounting.
Designed for placement at the front left and rear right, the softer compound improves lateral grip and helps the car hold lines on low-traction asphalt and carpet. The compliant nature of the part enhances contact patch control, though it can show quicker wear under very aggressive running conditions.
A practical upgrade for racers chasing more side traction and finer steering feel on low-grip circuits, the XRAY 302144-S soft upper arm is a useful addition to a race setup.
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