The factory rear arms are designed for a powersports vehicle, they are not designed to take the constant abuse that an Australian off-road race will give them. Virtually every team is welding strengthening plates and gussets with varying levels of success. The RevRange trailing arms are a complete re-design to address the most common issues, twisting across the arm, the shock mounting points and the rear radius mounts. Using an internal rib and hi-tensile steel we have developed an arm which will absorb 8 times the lateral load of the standard arm all whilst maintaining stock geometry, stock mounting positions and only weighing an extra 3kg per arm.