UDR135FX 135mm Front Internal Shocks Technical Upgrade UDR135FX by GPM  [UDR135FX]

TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX
Price:
USD$24.90
Brand:
GPM
Model:
UDR135FX
GTIN:
4894538308532
Condition:
Brand New
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alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"
alt="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX" title="TRAXXAS UNLIMITED DESERT RACER Aluminium Front Internal Shocks (135mm) - 2pc set - GPM UDR135FX"

Precision aluminium front internal shocks - 135mm

Precision-machined aluminium front internal shocks supplied as a 2pcs set for the TRAXXAS UNLIMITED DESERT RACER platform. These components are intended as CNC-style suspension upgrades that improve structural stiffness and predictable damping while maintaining original mount geometry.

Engineering notes: bodies are produced from 6061-T6 aluminium to raise tensile strength and maintain sealing face alignment under load. The design uses a tightly sealed assembly to reduce oil migration, and units come pre-filled with a high-concentration suspension oil for consistent viscosity. The shock shaft has been increased from 3.5mm to 5mm to reduce deflection and improve rebound stability under dynamic loads. The result is a direct-replacement upgrade engineered for durability and repeatable performance.

Packing includes

  • Front Internal Shock - 2pcs

Specifications

  • Item Front Internal Shocks (front), 2pcs set
  • Material Aluminium 6061-T6
  • Model Number UDR135FX
  • Shaft Diameter 5mm (upgraded from 3.5mm)
  • Seal Tightly sealed design to limit oil leakage
  • Oil High-concentration suspension oil (pre-filled)
  • Compatibility TRAXXAS UNLIMITED DESERT RACER

Recommended for builders seeking a rugged front damping platform with predictable behaviour; match spring rates and oil viscosity during setup to achieve desired compression and rebound characteristics.

 

Product Reviews
1 Reviews
rating
Just received Avery well packed and vey shiny box of GPM parts... all look great... only one negative... and probably on my part... the discs and calipers come in sets of 4... not 4 discs or 4 calipers.. oh well another order to follow... great service th

What inspection points should be part of routine service?

Inspect sealing surfaces, shaft straightness, and oil condition. Replace seals showing wear and refresh oil when damping feel changes or after extensive running.

How does the 5mm shaft affect torsional stiffness?

A thicker shaft reduces bending and torsional deflection compared with 3.5mm, which improves response consistency under high-load cornering and landings.

Are the seals service-friendly for field maintenance?

The tightly sealed design reduces service frequency; seals and internal components remain accessible for standard shock rebuilds and oil changes when required.

What setup changes are recommended after fitting these internals?

Start with stock springs, then iterate oil weight and spring rate to suit load conditions. Confirm compression and rebound tuning through measured test runs and small incremental adjustments.