TRAXXAS TRX4 9mm Brass Wheel Hex Adapters Track Width Upgrade TRX4010X/9M by GPM  [TRX4010X/9M]

9mm brass hex adapters for scale crawling

These 9mm brass wheel hex adapters are a precision aftermarket upgrade for TRAXXAS TRX4 Trail Crawler wheel hubs, made to widen track and add rotational mass for improved low speed stability. Each adapter is machined from brass, measures 9mm thick and is roughly 4mm thicker than the stock hex, with an individual weight close to 6g as supplied.

Widening the hex helps reduce the gap between the wheel and hub on TRX4 setups and moves the wheel outward without changing suspension geometry. The adapters are designed for wheel fitment and tuning on TRX4 Trail Crawler models and the retail set includes the mounting hardware needed to attach to standard wheel hex locations.

Installation typically involves removing the wheel, swapping the stock hex for the brass adapter, and refitting the wheel with the supplied fasteners. Always check clearance and confirm secure seating before running to ensure safe RC-scale operation.