TRAXXAS TRX-4 HD 12mm Brass Wheel Hex Hub Adapter, 8mm Thick - JR-TRX417-8MM by Jazrider  [JR-TRX417-8MM]

Brass 12mm wheel hex adapter for TRX-4 HD

This is an RC-scale wheel hex hub adapter engineered to match the TRAXXAS TRX-4 HD wheel interface and serve as a brass replacement hub insert. The part uses a 12mm hex interface and the body thickness is specified as 8mm, giving a solid metal seating surface between axle hardware and wheel.

Intended to reinforce the wheel-to-axle contact, the adapter offers a durable brass mating surface where stock plastic or thin hubs may show wear. Because it is an aftermarket accessory, expect the adapter to affect wheel offset and clearance; confirm fit on your chassis and body before final installation.

Installation is straightforward for experienced model technicians: remove the wheel and existing hub hardware, press the brass adapter into the wheel hex, ensure it seats flush, and secure using the original wheel hardware. After fitting, check for axial play and wheel alignment, then carry out a short test run to verify there are no clearance problems with suspension travel or bodywork.

Maintenance is simple but necessary: inspect the brass mating faces for wear, clear debris from the hex recess, and confirm the adapter stays firmly seated after regular running. Replace the adapter if you notice significant deformation or wheel play.