TRX4 Pendulum Wheel Knuckle Weight Kit with Brass Body TRX4023C by GPM  [TRX4023C]

Pendulum weights tuned for low-speed crawling

This 16 pcs pendulum wheel knuckle axle weight set is an RC-scale accessory engineered to add downward force for TRX4 platform crawling. The assembly uses a brass body with an alloy lid and stainless steel rolling beads to concentrate mass low on the wheel, helping the tyre keep ground contact when working through shallow drops or soft surfaces.

The kit includes a 9mm hex adapter that is larger than the stock hex, enabling fitment to wheels accepting the bigger hex, plus a selection of screws, shims, and washers for mounting to the outer knuckle case on both front and rear. Weight is adjustable through removable stainless steel beads so you can tune how much pendulum mass each wheel carries.

Materials were selected for predictable mass and corrosion resistance: brass for the main weight, alloy for the lid, and stainless steel beads and fasteners for use on muddy or wet runs. This is a tuning component for RC crawling behaviour and should be fitted and tested only on model vehicles.

Use the set to dial in low-speed traction and balance on TRX4 trail crawlers, adjusting bead count and placement to suit terrain and tyre choice.