970188 Primary chain adjuster bracket

This primary chain adjuster bracket from MCS is an OEM-style reproduction designed to keep your primary drive running smoothly. It is a direct replacement for OEM 39980-54. This bracket fits a wide range of early Sportster models, including 1954 to 1976 KH, XL, and XLH models, as well as 1970 to 1977 XLCH models. Proper primary chain tension is critical for both performance and component longevity, and this sturdy bracket ensures your adjuster stays exactly where it needs to be. It is a must-have for any mechanic working on ironhead-era Sportster primary drives, providing a reliable fix for a component that often sees significant wear over time.