This aluminium steering holder is a scale accessory made for the Team Losi Promoto-MX motorcycle model and referenced by the JR-LMX05-BK part designation. It functions as a direct replacement steering mount to improve rigidity at the steering linkage and front fork interface on the Promoto-MX chassis.
The aluminium build reduces steering pivot flex compared with common plastic originals, which helps maintain consistent geometry during demanding riding and heavy landings. That consistency can make setup changes to steering throw and servo endpoints more effective and predictable.
To fit, remove the stock holder, position the aluminium unit in the steering assembly, align linkage and stops, then fasten with the Promoto-MX's factory screws. After installation, check neutral steering alignment and confirm that full-lock travel is free from binding.