Promoto-MX Rear Brake Rotor Aluminum Upgrade JR-LMX07-BK for Team Losi by Jazrider  [JR-LMX07-BK]

Rotor Specification Overview

This is an aluminum rear brake disc made to suit Team Losi Promoto-MX scale motorcycle models and carries the part number JR-LMX07-BK. It functions as a direct replacement item for model-level brake systems.

The component's purpose is mechanical: it substitutes a worn or damaged rear rotor and provides the mounting surface for brake pads. Because it follows the Promoto-MX layout, confirm the model variant before ordering to ensure correct fitment.

Fitting the disc follows standard modelling practice. Remove the wheel and existing rotor, move any necessary spacers or mounting bits across, then install the new disc and verify that pad clearance and alignment are correct. Conduct a cautious bench test at low speed to confirm smooth braking operation before riding the model at speed.

Durability advice: inspect the rotor regularly for wear or deformation after intense sessions, keep fasteners secure, and clean the black surface gently to maintain its finish and protective properties.