TRAXXAS TRX4 Pendulum Wheel Knuckle Weight 6mm Hex Adapter TRX4023 technical upgrade by GPM  [TRX4023]

Pendulum wheel mass for wheel-end tuning

The TRX4023 pendulum kit concentrates mass at each wheel hub of TRAXXAS TRX4 crawlers to refine low-speed traction and stability on uneven terrain. The pendulum weight is mounted to the knuckle outer case and paired with a 6mm hex adapter that is 1mm wider than the original to ensure the mass drops into a consistent downward position during suspension articulation.

Tuning application: installing the pendulum weight moves local centre of gravity lower at the wheel, increasing contact normal force when negotiating obstacles or low-speed climbs. This component is intended as a tuning accessory rather than a chassis structural part and is fitted to the outer knuckle case to augment wheel load without modifying geometry.

Materials and service considerations: the assembly uses stainless steel rolling beads and stainless fasteners integrated with an aluminium body to increase wheel-end rotating mass while providing resistance to corrosion in wet or muddy environments. Inspect rolling surfaces and fastener torque during routine maintenance to preserve function.

For hobbyists seeking measured wheel-end mass to improve low-speed grip on TRX4 crawlers, the TRX4023 is a targeted, corrosion-resistant upgrade that is simple to install on standard outer knuckles.