TRAXXAS TRX-4 HD 12mm Brass Wheel Hex Adapter by JAZRIDER JR-TRX417-5MM  [JR-TRX417-5MM]

12mm Brass Wheel Hex Adapter for TRX-4 HD

This is an RC-scale wheel hex adapter designed for Traxxas TRX-4 HD applications, supplied under the JAZRIDER part number JR-TRX417-5MM. The adapter is a brass 12mm hex insert with a 5mm thickness intended to interface with TRX-4 HD wheel hex hubs and standard scale crawler wheels.

Installation is straightforward: the part fits over a 12mm wheel hex hub to position and retain the wheel on the axle interface. It functions as a direct replacement or spare hop-up where a brass adapter is required; the material and thickness are elements to consider when adjusting wheel fitment and static weight at the wheel mounting point.

In tuning terms this adapter serves two practical roles on a scale trail crawler: it provides a durable metal interface between wheel and hub, and its 5mm thickness can be used when small spacing or alignment changes are needed during wheel setup. As an RC-scale accessory it is intended only for model use on compatible TRX-4 HD assemblies.