The composite upper arms 4.9mm of the Xray X4 are precision suspension components designed for drivers looking to enhance the geometry and response of their 1/10 On-Road race car. Made from high-stiffness composite material, these arms provide consistency in alignment and reduced flex during competition, allowing for more predictable adjustments in the car's behavior.
- High-quality composite material for greater durability and less deformation under load
- 4.9mm diameter optimized for full compatibility with the X4 geometry
- Includes 4 units (1+1+1+1) to equip the front and rear suspension points
- Official reference Xray 302670 with guaranteed dimensional accuracy
- Improves cornering stability and steering precision in competition
- Direct replacement with no modifications needed to the chassis




















