TRAXXAS TRX4 Trail Crawler 9mm Brass Wheel Hex Adapters 20pcs by GPM TRX4010X/9M  [TRX4010X/9M]

Brass 9mm wheel hex adapters

These 9mm brass wheel hex adapters are an RC-scale upgrade produced for TRAXXAS TRX4 Trail Crawler applications, designed to widen wheel track and add rotational mass for improved low-speed crawling stability. Each adapter is machined from brass and measures 9mm in thickness, approximately 4mm thicker than the original hex, with an individual weight of about 6g as supplied.

The widened hex reduces lateral gap between wheel and hub on the TRX4 platform and helps position wheels outward without altering suspension geometry. The design is intended for wheel fitment and tuning on TRX4 Trail Crawler models, and the part set includes hardware to mount the adapters to standard wheel hex locations as supplied by the manufacturer.

Included hardware in the retail set matches the original package contents and supports direct replacement of stock hexes where the TRX4 wheel hubs accept 9mm hex thickness. Typical installation requires removing the wheel, replacing the stock hex with the brass adapter, and refitting the wheel using the provided fasteners, verifying clearance and secure seating for safe operation within RC-scale use.