This RC front wheel hub hex is intended for Team Losi Promoto-MX scale motorcycle models and aligns with the JR-LMX02-GR part reference. It substitutes the factory front hub hex with a metal mounting interface designed for repeated removal, fitting tweaks, and routine upkeep on scale dirt bikes.
The hub hex provides the interface between wheel and axle, indexing the wheel via the existing wheel nut or hex screw. As an aluminium machined component it offers a firmer hub-to-wheel connection compared with molded parts, helping to maintain alignment during setup and track use without implying any full-size vehicle application.
Fitting is simple for those experienced with scale motorcycle service: remove the front wheel, replace the standard hex with the aluminium piece, and refit using the original fastener. Check seating and wheel runout after installation and confirm the hex sits squarely; use the correct hex driver and avoid excessive torque to preserve hub threads.
Viewed as a basic hop-up, this hex provides a steadier mounting point that can reduce play at the wheel interface and make chassis adjustments more predictable when fine tuning Promoto-MX handling. It is supplied as a replacement and service component rather than a standalone performance enhancer.
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