TRAXXAS TRX4 Pendulum Knuckle Weight Set TRX4023B by GPM  [TRX4023B]

Pendulum weights to boost crawl traction on TRX4

This aftermarket kit supplies pendulum-style wheel knuckle weights built for TRAXXAS TRX4 Trail Crawler platforms. The added mass sits on the outer knuckle and encourages each wheel to press down during slow-speed articulation, helping tyres find low ground and retain traction over uneven or muddy terrain.

Construction pairs an aluminium housing with a brass lid and stainless steel rolling beads as indicated in the product notes, and it includes a wider 9mm hex adapter for firm mounting. The pendulum arrangement permits vertical self-adjustment of the mass so it tracks downward toward the terrain instead of transferring weight rigidly across the chassis.

Fit these units to the outer case of front and rear wheel knuckles where they bolt on in place of or together with stock components. The kit contains multiple fasteners and shims for fitting, and the 16 piece set supplies parts for four wheels plus spares as itemised. In practical tuning this component raises per-wheel downward load, reduces wheel lift under extreme articulation, and helps tune front to rear balance for slow crawl runs.

Fit this kit to gain improved wheel bite and a steadier low-speed crawl feel on TRX4 rigs, especially useful in wet, rutted or technical sections where extra downward force helps wheels track.