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

Rear wheel mounting reinforcement for PROMOTO-MX

This 7075 aluminium rear wheel reinforcement ring set is an aftermarket solution for LOSI PROMOTO-MX models. The parts use a stronger alloy to reduce deformation and wear where stock rings can flex under load.

Provided as a direct-fit reinforcement, the kit helps stabilise the rear wheel assembly and reduces hub edge wear under torque and lateral forces. The supplied fasteners preserve factory clearances when fitted.

It is a tuning enhancement rather than a mechanical geometry change: increasing rigidity at the wheel mount reduces repeatable play and supports more consistent rear-end adjustments for track or trail running.

A practical, material-driven upgrade for PROMOTO-MX owners seeking a firmer hub interface without altering core drivetrain or suspension geometry.