Engineered as a replacement pair for LOSI PROMO-MX motorcycle gearboxes, these medium carbon steel gears are supplied to remedy worn teeth and restore smooth engagement.
Install the set when gear wear affects drivetrain smoothness or when adjusting gear mesh for specific performance needs. Remove the worn pair from the gearbox, fit the new gears and confirm correct mesh and clearance against the spur and motor pinion to ensure quiet running.
The medium carbon steel construction is chosen for stable wear behavior and predictable engagement under typical RC conditions, providing a dependable spare for competitors and regular club riders alike.
LOS262007
Fit the MX1200S set for an immediate gear replacement on the listed PROMO-MX models and confirm smooth rotation and correct mesh prior to track use.
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