Designed for Team Losi Promoto-MX scale motorcycle models, this front wheel hub hex carries the JR-LMX02-GR identifier. It replaces the standard hub hex to provide a metal mounting interface intended for frequent removal, fit adjustment, and routine workshop service.
The hex sits between the axle and wheel assembly, transferring wheel indexing through the existing wheel nut or hex screw. Being machined from aluminium it is used where a more rigid hub-to-wheel connection is preferred over molded plastic, helping to preserve alignment during setup and use without implying any road vehicle application.
Installation follows standard procedures for scale motorcycles: remove the front wheel, swap the stock hex for the aluminium unit, and secure with the original fastener. After installation check that the hex seats squarely and confirm wheel runout; use the correct hex driver and take care not to over-torque the screw to avoid damage to the hub threads.
As a tuning accessory this hop-up provides a firmer mounting datum that can reduce wheel interface slop and make suspension and steering tweaks more predictable when refining the Promoto-MX handling. It is intended as a replacement and service part rather than a major performance upgrade on its own.
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