LOSI Promoto-MX Rear Wheel Hex Upgrade JR-LMX03-GD by Jazrider  [JR-LMX03-GD]

CNC aluminium hub for Promoto-MX durability

This machined aluminum rear wheel hub hex is produced as a direct-fit accessory for Team Losi Promoto-MX motorcycle chassis. The gold-coated aluminum surface delivers a firmer connection between wheel and axle than standard plastic hexes, helping to preserve alignment under sustained loads.

Fitting is straightforward: pull the original hex off, slide this hub onto the axle seating, and fasten with your existing wheel-retaining screw. Confirm the hub sits flush against the wheel hub and that bearing positions remain unchanged before final torque.

When you are tuning or doing routine maintenance, this hub reduces wheel-interface flex and provides a harder wearing surface for frequent wheel changes. Periodic checks of seating and the wheel-retaining fastener are recommended to avoid unexpected looseness on the trail.