TRAXXAS X-MAXX Rear upper, lower and knuckle arms by GPM TXM545522  [TXM545522]

Aluminum rear arm set for X‑MAXX

This aluminum rear arm set is an RC-scale replacement designed for the TRAXXAS X-MAXX rear suspension. It replaces the rear upper and lower arms and the rear knuckle arms with machined aluminum components intended to improve structural durability and maintain consistent arm motion during aggressive track or bash sessions.

The kit focuses on rear chassis stability and tuning: the upper arms use an externally adjustable tie-rod style connection to set camber and roll-center behavior, while the lower arms and knuckles are configured to reduce unwanted flex. POM collars at knuckle interfaces and steel reinforcement at the upper-arm midpoint are used to preserve smooth pivot action without significantly increasing weight.

Installation notes: this is an RC-scale accessory intended to fit the rear upper and lower arm locations and rear knuckle arm positions, fastened using the supplied pins and screws. Basic disassembly of the rear hub and arm mounts is required, and final setup should include range-of-motion and chassis alignment checks to ensure the intended suspension geometry.

This set serves as a direct aftermarket upgrade for X‑MAXX rear suspension where firmer arm response and smoother pivot action are desired, enabling more consistent handling and simpler tuning of rear roll and camber behavior.