Team Losi Promoto-MX Scale Rear Brake Disc JR-LMX07-BK by Jazrider  [JR-LMX07-BK]

Overview for Promoto-MX Rotor

This aluminium rear brake disc is designed for Team Losi Promoto-MX scale motorcycle kits and is identified as JR-LMX07-BK. It is supplied as a direct replacement for model brake systems and should not be used on full-size motorcycles.

The disc replaces worn or damaged rear rotors and provides a consistent mounting face for the brake pads. Confirm your model matches the Promoto-MX specification to ensure correct fitment.

Installing the disc follows standard model maintenance: remove the wheel and original rotor, transfer required spacers or hardware, fit the replacement disc, then verify pad alignment and rotor clearance. Perform a low-speed test on the bench to confirm proper braking action before normal running.

Routine checks: include the rotor in regular inspections, watch for warping or scoring after heavy use, keep fasteners torqued, and clean the black finish with mild methods to preserve the surface.