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

23mm Brass Hex Adapter Details

These 23mm brass wheel hex adapters are an aftermarket option for TRAXXAS TRX-4 trail machines that require a wider track and extra wheel mass for improved stability on technical lines. Fabricated from brass, each adapter has a 23mm hex face that produces a thicker profile than the stock hex, moving wheel offset outward to 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. Per supplier notes each adapter weighs roughly 17g, adding tangible weight to each wheel hub for tuning purposes.

Installation is direct on compatible hubs: remove the original hex, mount the brass adapter on the axle, arrange shims or washers to correct wheel offset, and fasten with the supplied M4 shafts and hex socket screws. Check thread engagement and wheel alignment after fitting; the additional width may require minor trimming or the use of spacers depending on wheel and tyre clearance.

Tuning effect: the 23mm adapters widen the track and increase hub unsprung mass, which can lower roll tendency and aid low-speed traction. Expect a change in suspension behaviour and steering feel; adjust damper valving and spring rate to compensate and achieve the desired balance.

A hardware-complete brass hex adapter kit that widens track and adds hub weight to TRX-4 based crawlers while keeping fitment straightforward.