The XRAY 302134-C composite upper arm is designed to lift traction performance on the X4 by adding calculated flexibility. Installed in the front right and rear left positions, these arms help tyres stay in contact under load, improving corner drive and stability on mixed surfaces.
Composite construction offers a balance of resilience and controlled flex, so the arm resists crash damage while delivering a predictable feel. The profile keeps necessary clearance at the inner shock mount and minimises radial looseness for sharper control.
Made specifically for the XRAY X4 family, these arms slot directly into the front right and rear left locations. Whether you are refining a race setup or improving day-to-day handling, they are a straightforward upgrade that emphasises traction and component life.
Copyright © 2008-2026 rcjaz.co.nz All rights reserved