LOSI Promoto-MX Compatible Rear Hub Hex, Aluminum - JR-LMX03-DB by Jazrider  [JR-LMX03-DB]

Aluminum rear wheel hex tuned for Promoto-MX

This aluminum rear wheel hub hex is a scale replacement part for the Team Losi Promoto-MX motorcycle and carries the Jazrider JR-LMX03-DB identifier. It functions as the mechanical link between the rear wheel and axle, substituting the original plastic hex to give a firmer connection and steadier wheel alignment during tuning and riding.

Choose this hub for direct swaps on Promoto-MX compatible rear wheels when consistent wheel seating and accurate alignment are priorities rather than performance claims. Fitting is straightforward: remove the existing hub from the wheel assembly, set the aluminum hex into the hub recess, and secure using the motorcycle's wheel fixings. Verify clearance and wheel runout after installation.