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

23mm Brass Hex Upgrade for TRX-4

This 23mm brass wheel hex adapter set is an RC-scale upgrade for TRAXXAS TRX-4 trail crawlers that need a wider track and added wheel weight to improve slow-speed stability. Each adapter is precision machined from brass and measures 23mm across the hex face, creating a thicker profile than the stock hex to move wheel offset outward and reduce visible 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, delivering noticeable extra weight at each wheel hub.

Installation is straightforward on compatible hubs: remove the stock hex, slip the brass adapter onto the axle, add shims or washers as required to correct wheel offset, and secure with the supplied M4 hardware and hex socket screws. Ensure correct thread engagement and verify wheel alignment after fitting; the wider hex may need minor trimming or the use of wheel spacers depending on wheel and tire clearance.

Tuning role: the 23mm hex increases track width and hub mass, which can improve low-speed trail composure and reduce the tendency to roll on steep side slopes. Because the adapters add unsprung mass at each hub, expect a change in suspension response and steering feel; adjust shock valving and spring rate to suit for best handling.

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