LOSI 1/4 Promoto-MX Lean Bar Wheels by GPM MX040  [MX040]

Scale lean bar wheels for Promoto-MX

This is an RC-scale lean bar wheel set designed for the LOSI Promoto-MX 1/4 scale motorcycle platform. The assembly is built from CNC-machined components intended to keep shape under impact while allowing controlled flex for realistic leaning behavior on a model bike.

The parts are used where controlled movement and impact resistance are required, for example during setup changes or durability upgrades on Promoto-MX RTR units. Fitment and role: these wheels and related hardware replace the stock lean bar assembly and act as a tuning item to influence lean response and durability without altering electrics or drivetrain.

Installation notes: verify compatibility with the listed Promoto-MX RTR part numbers, inspect included bearings and shims for correct orientation, and tighten fasteners to avoid over-clamping which can restrict intended flex. Use standard RC tools and follow chassis mounting points; no special jigs are required.