LOSI PROMOTO-MX 7075-T6 Rear Brake Disk by GPM MX010/DISK  [MX010/DISK]

LOSI PROMOTO-MX Rear Brake Disk

This aluminum rear brake disk is an RC-scale replacement designed for LOSI 1/4 PROMOTO-MX motorcycles. Machined from 7075-T6 aluminum, the disk provides a direct OEM-replacement form factor intended for hobby use on the specified LOSI models. The part is aimed at maintenance and light tuning tasks where durability and consistent braking feel are desired.

Installation typically involves wheel removal and swapping the original disk for this unit using the existing hardware. The disk is sold as a set to cover standard rear brake assemblies and is intended to work with the stock mounting points on the listed PROMOTO-MX models. Use common RC hand tools and verify fit before finalizing installation.