This 7075 aluminium rear wheel reinforcement ring set is an aftermarket upgrade aimed at LOSI PROMOTO-MX riders. The heavier alloy improves resistance where stock rings may bend or wear under repeated use.
The set fits as a direct replacement to reinforce the rear wheel mounting, helping to keep the hub edge from spreading under torque and sideways loads. Fasteners included with the kit maintain factory alignment during fitting.
Consider this a tuning aid rather than a chassis change: the rings stiffen wheel mounting points, reducing play and making setup adjustments more predictable for racing or casual backyard practice.
A straightforward, material-based upgrade for owners who want a firmer rear mounting interface while keeping original drivetrain geometry intact.
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