TRAXXAS Unlimited Desert Racer Rear Shock Dampers 139mm UDR139R by GPM  [UDR139R]

Aluminium rear spring dampers built for TRX UDR

This rear damper kit is intended for the TRAXXAS Unlimited Desert Racer. It contains two aluminium-bodied rear spring dampers designed to reduce internal friction and soak up impact energy so the car runs with better balance off-road.

The component changes are simple and service-friendly: coil wire increases from 1.8mm to 2mm while still accepting standard springs for tuning, and the shock shaft diameter is raised from 3.5mm to 5mm to resist bending. The cylinder body is aluminium and the spring retainer is engineered to seat tightly, limiting oil leakage during operation.

Use these dampers where stronger rear damping is required for rough tracks or high-speed desert sections. Installation needs routine shock servicing steps, and tuning follows the usual adjustments with shock oil, springs, and preload to find the right ride height and damping feel.

For builders looking to firm up rear damping on the TRAXXAS UDR, these aluminium rear dampers offer heavier shafts and springs without changing normal shock setup practices.