Promoto-MX Motorcycle Rear Wheel Hub Hex Aluminum Upgrade - JR-LMX03-DB by Jazrider  [JR-LMX03-DB]

Rear wheel hub hex for Promoto-MX applications

This aluminum rear wheel hub hex is an RC-scale replacement component designed for the Team Losi Promoto-MX motorcycle chassis and offered as the Jazrider JR-LMX03-DB item. It replaces the factory plastic hex to provide a firmer axle-to-wheel connection, improving consistency in wheel positioning during setup and routine checks.

The hub is intended for direct swaps with Promoto-MX compatible rear wheels; focus on correct seating and clearance rather than expecting performance upgrades. Installation steps include removing the standard hub, inserting the aluminum hex into the wheel hub recess, and tightening the original wheel hardware. Always inspect mating surfaces and confirm the wheel runs true before using the model.