Compatibility for LOSI Promoto-MX Adjustable Chain Tensioner JR-LMX08-GD Gold by Jazrider  [JR-LMX08-GD]

Overview for Promoto-MX chain tensioning

This gold aluminum chain tension adjuster set serves as an RC-scale aftermarket replacement for the Team Losi Promoto-MX Motorcycle. The parts offer a metal upgrade for precise tension control and lateral alignment when fine-tuning RC dirt bike drivetrains.

Use the adjuster to make measured tweaks to chain slack and to remove side-to-side play at the sprocket. Proper alignment lowers the risk of accelerated wear on chain and spur gear, while the aluminum construction adds rigidity compared with standard plastic adjusters.

On installation: the set matches the Promoto-MX adjuster mounting points and swaps in for the existing hardware without changing the drivetrain geometry when positioned correctly. Verify tension and alignment with a brief run after adjustment to ensure correct setup.