TRAXXAS TRX4M FORD BRONCO 1-inch Beadlock Wheel Rims by GPM TRX4MZSP1216  [TRX4MZSP1216]

Aluminum 1-inch beadlock rims for TRX4M

This GPM TRX4MZSP1216 kit is an RC-scale wheel rim set designed for 1-inch inner-diameter tires and intended for small-scale crawler models. The set targets TRX4M-based builds and other 1/14–1/24 scale platforms that use 1-inch wheels, providing a machined aluminum beadlock option to replace stock plastic rims.

Key fit notes: the rims require tires with a 1-inch inner diameter and are supplied as loose parts for user assembly. The middle ring features venting to ease tire seating and trimming. The kit lists multiple compatible part pairings from the same GPM family such as TRX4MZSP19A/B through TRX4MZSP24A/B for tire and adapter matching.

Installation and tuning role: the package includes the wheel halves and hardware for clamping the tire bead, so assembly accuracy affects bead security and wheel balance. The included metal weighting feeders allow incremental mass tuning at the rim, useful for lowering rolling resistance or adjusting wheel inertia when refining crawling behavior on scale trails.

For scale crawling builds where durability and a more realistic wheel appearance matter, these aluminum beadlock rims provide a serviceable upgrade path; confirm tire inner diameter and accept that the set ships as separate parts that must be assembled.