PROMOTO-MX Rear Wheel Reinforcement Rings 7075 Aluminium MX0505R for LOSI by GPM  [MX0505R]

Strengthened rear wheel rings for PROMOTO-MX

This 7075 aluminium reinforcement ring set is an aftermarket part intended for LOSI PROMOTO-MX machines. The heavier alloy resists deformation where stock plastic or thin steel rings can fatigue under load.

Delivered as a direct-fit reinforcement, the kit stabilises the rear wheel mount area and helps reduce edge wear on wheel hubs when the bike sees torque spikes or sideways forces. Use the supplied fasteners to maintain factory clearances during fitment.

As a tuning component it does not alter suspension geometry; instead it increases rigidity at the mounting surface which can improve repeatability when fine-tuning rear-end behaviour for track runs or casual trail sessions.

Ideal for PROMOTO-MX owners who want a modest, material-led upgrade to firm up the wheel mounting without touching the drivetrain layout.