TRAXXAS TRX4 Trail Crawler Aluminum 6 Pole Wheels & Crawler Tire with 21mm Hex Adapter by GPM TRX4689/21MM  [TRX4689/21MM]

TRX4 aluminum wheel and tire kit

This 12pcs wheel and tire set is an aftermarket, RC-scale component designed for TRAXXAS TRX4 Trail Crawler use. The kit combines aluminum 6-pole wheels with crawler-style tires and includes a 21mm hex adapter to interface with TRX4 hubs, focusing on parts-level compatibility and tuning flexibility rather than cosmetic change.

The design intent is practical: aluminum wheel hubs provide a stiffer mounting surface compared with typical plastic wheels, and the crawler tires prioritise traction characteristics useful in slow-speed trail crawling. The included 21mm hex adapter supports models that accept that hex dimension without requiring irreversible modification to the axle or hub assembly.

Installation notes: install wheels using the vehicle's standard wheel nuts or screws, verify hex adapter seating before each run, and check hub interface for clearance with existing beadlock or wheel hardware. Tuners should adjust tire fit and wheel offset as needed to maintain suspension geometry and avoid contact with the chassis or shock towers.

Use this set when you need a durable aluminum wheel mounting surface and crawler-style rubber for low-speed traction, verify fitment with your TRX4 hubs before final installation.