Made as an RC-scale replacement, this twin-gear set suits LOSI PROMO-MX motorcycles needing renewed gear engagement and consistent rotation under load.
Use the set when worn or damaged teeth affect drive smoothness, or when re-tuning drivetrain response. Access the gearbox, remove the old gears and install the new pair, making sure to set proper mesh with the spur and motor pinion for quiet, even running.
The medium carbon steel material is chosen for predictable wear characteristics and steady engagement, making the set a sensible spare for riders servicing machines between track sessions.
LOS262007
This MX1200S set is intended for direct replacement on the listed PROMO-MX machines; always confirm mesh and smooth free rotation before completing the rebuild.
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