Race Grade Primary Chain Adjuster Shoes

BAKER Drivetrain’s Race Grade Primary Chain Adjuster Shoes are precision-machined from virgin billet Nylon 6-6 to deliver increased strength, reduced wear, and a longer service life than the stock molded components. They are engineered as direct replacements for H-D part numbers 39976-65B, fitting 1965–2000 Big Twin models, and 39976-01, fitting 2001–2006 Big Twin models, excluding the 2006 Dyna. With the OEM no longer producing these parts, BAKER provides a U.S.-made alternative that outperforms the stock molded parts and imported molded copies. Each adjuster shoe is built for consistent performance and long-term reliability, making it an ideal fit solution for riders who appreciate modern manufacturing quality and real-world testing.