This aluminium front wheel hub hex is produced for compatibility with the Team Losi Promoto-MX motorcycle dirt bike chassis and is identified as part JR-LMX02-BK. The component provides the six-sided interface between wheel and axle to secure the wheel while enabling removal during maintenance.
Installation follows common Promoto-MX wheel assembly practice: use the correct hex driver size and check bearing seating as you fit the hub. The part assists with quick wheel swaps and helps retain alignment when changing tyres or adjusting suspension settings.
For setup and servicing the hub reduces play at the wheel mount when properly fitted and promotes repeatable wheel installation during tuning cycles. Routine inspections of threads and tightness after track use are recommended.