LOSI Promoto-MX Motorcycle Front Wheel Hub Hex by JAZRIDER JR-LMX02-GR  [JR-LMX02-GR]

Front wheel hub hex for Promoto-MX

This is an RC-scale front wheel hub hex designed for Team Losi Promoto-MX motorcycle models, offered under the JAZRIDER JR-LMX02-GR designation. The part replaces the standard front hub hex to provide a metal mounting interface intended for repeated removals, fit adjustment, and routine maintenance on model dirt bikes.

The hub hex is presented as a direct RC component for wheel mounting: it interfaces between the wheel assembly and the axle, indexing the wheel with the existing wheel nut or hex screw. Because this is an aluminium part it is used where a more rigid hub-to-wheel connection is preferred over molded plastic pieces, helping maintain alignment during setup and track use without implying real vehicle application.

Installation is straightforward for hobbyists familiar with scale motorcycle maintenance: remove the front wheel, swap the original hex for the aluminium unit, and secure using the original fastener. Check wheel runout after assembly and confirm the hex seats squarely against the hub surface. Use the appropriate hex driver for the wheel screw and avoid overtightening to prevent thread damage in the wheel hub.

In tuning terms this part is a simple hop-up: a firmer mounting point can reduce play at the wheel interface and make suspension and steering adjustments more predictable when dialing handling on the Promoto-MX chassis. It is intended as a service and replacement item for scale dirt bike setups rather than a performance modifier by itself.