This front wheel hub hex is made for Team Losi Promoto-MX scale motorcycle models and is listed as JR-LMX02-GR. It swaps in for the factory front hub hex to provide a metal mounting face suited to repeated removal, fit checks, and routine servicing on scale dirt bikes.
The component interfaces between the wheel and axle, locating the wheel via the existing wheel nut or hex screw. As an aluminium machined part it gives a firmer hub-to-wheel joint than injection molded parts, helping maintain alignment during setup and during running without suggesting any real vehicle use.
Fitting is simple for those used to model motorcycle maintenance: take off the front wheel, replace the original hex with the aluminium unit, and refit with the original fastener. After fitting inspect wheel runout and ensure the hex sits flush; use the correct hex driver and avoid excessive torque to protect the hub threads.
As an upgrade item, this hex offers a firmer mounting point that can reduce play at the wheel interface and make chassis adjustments more repeatable when tuning the Promoto-MX setup. It is offered as a service and replacement component for scale dirt bike models rather than a performance kit on its own.
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