TRAXXAS TRX4 Trail Crawler 23mm Hex Pendulum Wheel Weight by GPM TRX4023DX  [TRX4023DX]

Pendulum wheel weights for scale crawling

This GPM kit is a 12pcs pendulum-style wheel weight set designed for TRAXXAS TRX4 scale trail crawlers. The kit uses a brass main body with an alloy lid and removable stainless steel rolling beads so each wheel can carry additional downforce without changing suspension geometry. The pendulum mass keeps weight low and toward the tyre contact patch to help keep wheels planted during low-speed crawling and when exiting depressions.

The design installs on the outer case of the knuckles, front and rear, and does not replace internal axle parts. Weight is adjustable via up to eight removable stainless steel beads per unit, each bead weighing 4g, allowing fine tuning of per-wheel mass between roughly 66g and 86g depending on bead count and configuration. The kit also includes a wider 23mm hex adapter to work with larger hex setups.

Materials and layout are chosen for use on muddy or wet trails, with stainless hardware and beads reducing corrosion risk compared with untreated metals. The pendulum action provides a consistent downward bias as the wheel rotates, so changes are focused on traction behavior rather than altering steering geometry.

For builders and tuners focused on low-speed traction and stable recovery from ruts, this GPM pendulum weight kit provides a tunable, corrosion-resistant option for TRX4 knuckles. Adjust bead count to balance wheel grip and overall roll characteristics for specific trail conditions.