TRAXXAS TRX4 Trail Crawler Aluminum Pendulum Wheel Weight & 6mm Hex Adapter by GPM TRX4023A  [TRX4023A]

Trail crawler pendulum wheel weights

This 24pcs set is a scale RC accessory made for TRAXXAS TRX4 trail crawlers to add rotating mass at each wheel and improve low-speed traction and stability. The kit combines pendulum-style stainless steel rolling beads with aluminum outer cases and widened 6mm hex adapters to shift weight downward as the wheel turns, helping the tyre maintain contact on uneven, muddy or low-lying terrain.

The pendulum design lets the internal mass move slightly and stay oriented downward, providing a consistent bias toward the ground rather than a fixed ballast. That behavior helps when a wheel is digging into soft surfaces or trying to climb out of depressions, by increasing the effective downward force at the tyre contact patch during rotation.

Installation targets the front and rear outer cases of the wheel knuckles and uses supplied stainless fasteners and widened hex adapters; the design is presented as an aftermarket GPM solution for TRX4 style knuckles rather than an original-equipment item.

For hobbyists running TRX4 trail rigs who want a mechanical way to add rotating mass and a downward bias at the wheels, this GPM set offers a stainless and aluminum pendulum solution that installs at the knuckle outer cases to improve low-speed traction and stability in muddy or uneven terrain.