This pendulum wheel knuckle is an engineered axle-end weight intended for fine tuning of unsprung mass on Axial SCX10 crawlers. The weight geometry concentrates mass low and outboard to enhance tyre contact under high tilt, while the central bearing and Delrin collar provide controlled, low-friction swing.
The kit includes a 31mm hex adapter for increased wheel back-spacing and ships with the hardware required for assembly. Important fit data from the manufacturer: pendulum mass is 82 grams each, the 31mm hex is 25mm wider than the original hex, wheels must have a 45mm inner diameter and a 5mm threaded hole to accept the supplied fasteners. Use these components to balance axle-end weight with tyre and suspension choices when tuning for technical crawling.
For precision axle-end tuning on Axial SCX10 vehicles, this pendulum assembly offers predictable low-centre mass behaviour; validate wheel bore and thread compatibility before installation to ensure correct fitment.