Team Losi Promoto-MX Rear Wheel Hub Hex Aluminum JR-LMX03-PU by Jazrider  [JR-LMX03-PU]

Precision rear hub hex for Promoto-MX

This JAZRIDER JR-LMX03-PU is a CNC-machined aluminum rear wheel hub hex supplied in purple as an aftermarket replacement for the Team Losi Promoto-MX motorcycle platform. The part locates and secures the rear wheel on the axle while transmitting drive loads from the gearbox to the wheel.

Replacement is a simple service task: remove the wheel and axle hardware, fit the hub hex onto the axle spline or wheel adapter, then reassemble and confirm bearing seating and axial play. Use the correct-size hex driver and basic hand tools, and keep fasteners at the recommended tightness when completing the job.

In tuning and maintenance the stiffer aluminum interface reduces flex relative to softer materials, and the anodized purple finish aids quick parts identification in the pits. Fit this hub hex as a direct spare when restoring wheel alignment or prepping a Promoto-MX for a session.