Axial SCX10 Pendulum Knuckle Wheel Weight SCX023AX by GPM  [SCX023AX]

Technical overview of pendulum knuckle weights

This pendulum wheel knuckle axle weight is offered as an aftermarket upgrade for Axial SCX10 style crawler platforms. The assembly pairs a dense brass main weight with an alloy lid and removable stainless steel rolling beads to allow incremental adjustment of downward load at each wheel for controlled low-speed traction and recovery on varied terrain.

The pendulum geometry locates mass low and outboard at the knuckle to preserve downward force as suspension articulates. Stainless rolling beads act as low-friction elements inside the carrier; each bead is approximately 4g and removable to reach a target wheel mass. Stainless components are selected to limit corrosion during wet and muddy operation.

Key installation details: units mount to the outer face of front and rear knuckles, require wheels with a 45mm inner diameter and 5mm hub thread holes, and include a 21mm hex adapter to expand effective hex width for wider wheel setups. Reported assembled weight per item is in the 66 to 86 gram range with eight beads, with at least three beads advised for repeatable behaviour.

Use these pendulum weights to add measured low-speed traction and wheel stability; verify wheel inner diameter and hub thread compatibility before fitting and tune bead count to balance traction gain against rotational inertia for your specific setup.