Description
Stock automatic primary chain adjusters can over-tighten over time, accelerating wear on your motor sprocket and transmission drive bearings—two components you can’t afford to compromise. This manual adjuster kit gives you precise control, allowing you to maintain factory-spec tension (5/8″ to 7/8″) without the guesswork. If you’re running your engine hard or building for reliability, this is a straightforward upgrade that reduces unnecessary stress on critical drivetrain components.
- Manual adjustment mechanism
- Prevents over-tightening
- Reduces bearing stress
- Factory-spec range: 5/8″–7/8″
- Uses OEM hardware
- Bolt-on installation
- Requires primary cover removal
- MPN: 1120-0393
- Instructions included
