TRAXXAS TRX-4 Trail Crawler 23mm Brass Wheel Hex Adapters by GPM TRX4010X/23M  [TRX4010X/23M]

23mm Brass Wheel Hex Adapters

This brass wheel hex adapter set is an RC-scale upgrade designed for TRAXXAS TRX-4 trail crawlers that need a wider track and additional wheel weight for tuning stability. Each adapter is machined from brass and measures 23mm across the hex surface, yielding a thicker profile than the stock hex to shift wheel offset outward and help reduce gaps between wheel and body.

Key hardware included in the kit: Hex Adapter 4pcs, Stainless Steel Screw Shaft M4x2.5x11 4pcs, Shims 5mm 4pcs, 5mm Metal Washer 4pcs, Stainless Steel Hex Socket Screw 20mm 4pcs. Individual adapter mass is approximately 17g each according to supplier notes, providing measurable added weight at each wheel hub.

Installation is straightforward on compatible hubs: remove the stock hex, fit the brass adapter onto the axle, locate shims or washers as needed to correct wheel offset, and secure with the provided M4 hardware and hex socket screws. Use correct thread engagement and check wheel alignment after installation; the extra width may require minor trimming or wheel spacer adjustments depending on wheel design and tyre clearance.

Tuning role: the 23mm hex increases track width and hub weight, which can improve low-speed trail stability and reduce tendency to tip during steep side-angles. Because the part is brass, expect increased unsprung mass at each wheel which affects suspension response and steering feel; tune shock valving and spring rate accordingly for best results.

This GPM brass hex adapter set provides a direct, hardware-complete option to widen track and add hub weight on TRX-4 based trail rigs while keeping fitment changes minimal.