The HARDDRIVE Manual Primary Chain Adjuster is engineered as a direct replacement for the original equipment automatic version, providing a manual method for selecting primary chain tension. Constructed from anodized billet aluminum, the adjuster offers precise fine‑tuning and secure locking of the chain tension setting.
By eliminating the automatic adjustment mechanism, this component reduces the risk of over‑tightening that can damage bearings and seals. The manual lock feature maintains tension without free play, ensuring consistent performance during severe shifting and extending the service life of the drivetrain.
Manufacturer Spotlight:HardDrive V-Twin(Est. 1960, Boise, Idaho, USA)
American V-Twin aftermarket engineering and performance components.