GPM TRX4023B Precision Pendulum Knuckle Weights for Traxxas TRX4  [TRX4023B]

Precision pendulum knuckle weights for targeted downforce

The GPM TRX4023B pendulum knuckle axle weights add concentrated mass to each wheel on the Traxxas TRX4, improving low speed stability and line holding. The aluminium bodies combine with stainless steel rolling beads for consistent downward force across travel.

Technical advantages

Engineered to raise effective wheel weight, the units allow a greater crawling angle and improved contact patch behaviour. Stainless steel rolling beads supply 42 grams per wheel and resist corrosion, ensuring repeatable performance in wet or abrasive environments. The pendulum geometry maintains steady downward pressure on both front and rear outer case knuckles for repeatable balance tuning.

Installation and setup notes

Supplied for TRX4 fitment by GPM, the kit installs to the front and rear outer knuckle cases using the included hardware. The 9mm hex adapter increases hex width by 4mm versus the original, so confirm hub clearance during setup. Check tightness and alignment after initial runs to verify desired handling response.

Specifications

• Material: Aluminum and Stainless Steel
• Weight per piece: 56g
• Hex Adapter Width: 9mm (4mm wider than original)

Packing includes

• 9mm Hex Adapter - 2PCS
• Stainless Steel Cap Head Screw 2.5x12 - 4PCS
• Stainless Steel Screw Shaft M4x2.5x11.8 - 2PCS
• 5mm Shims - 2PCS
• 5mm Metal Washer - 2PCS
• 10mm Hex Socket Screw - 2PCS