The SCX023 pendulum wheel knuckle paired with a 21mm hex adapter from GPM suits Axial SCX10 trucks and selected Gmade models. It employs a bearing-centred pendulum with a Delrin collar and a tapered weight form designed to keep mass down in the wheel envelope for steadier contact at extreme wheel angles.
This kit raises per-wheel mass to boost traction and stability when tyres sit inside depressions or when negotiating shallow ledges. The pendulum narrows at the top and widens at the bottom so the extra mass remains downward as the wheel rotates through steering and suspension travel, helping retain ground contact.
Design and compatibility notes: the 21mm hex enlarges the hub flange compared with many factory hexes, and the pendulum assembly uses a bearing and Delrin sleeve for smooth relative motion. The single pendulum plus hex is listed at 54 grams, with the hex width specified as 21mm.
Fitment requirements: intended for wheels with an inner diameter of 45mm and a 5mm threaded hole for fastening. Verify wheel inner diameter and thread size prior to installation to ensure correct fit.
Supplied items: 21mm hex adapter × 2 pcs, stainless steel pin 2x10 × 2 pcs, 5mm spring steel shims × 2 pcs, 5mm metal washers × 2 pcs, 19mm stainless steel hex socket screws × 2 pcs, plus the pendulum weight assemblies and Delrin collars as shown.
Fit this kit to increase controlled wheel-end mass for improved axle loading and tyre contact on technical courses; always confirm wheel ID and thread size before fitting.
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