Losi Promoto-MX Chain Tension Adjuster Kit — Aluminum Precision - JR-LMX08-DB by JAZRIDER  [JR-LMX08-DB]

Precision aluminum adjusters for the Promoto-MX

This RC-scale chain tension adjuster set is produced for the Team Losi Promoto-MX Motorcycle platform by JAZRIDER. Machined from aluminum and finished in blue, the parts replace factory plastic adjusters on Promoto-MX dirt bike chassis to provide a stable, repeatable adjustment point for chain tension and axle alignment during tuning and maintenance.

The adjuster set allows fine control of chain slack and helps keep the driveline aligned after suspension or drivetrain work. It mounts at the swingarm axle area and is intended to work with the bike's existing axle hardware, offering incremental movement so chain tension can be set consistently across both sides of the swingarm.

Installation notes: fit the adjusters to the axle area, ensure the axle seats squarely in the adjuster slot, and use progressive adjustments to reach the desired chain tension before securing the axle hardware. Verify chain alignment and free rotation of the rear wheel after final tightening. These parts are intended for RC dirt bike use and for users comfortable with routine chassis tuning.