Transmission Adjusters

3 products

Our range of Transmission Adjusters for Harley-Davidson covers the chain and belt tensioners used on 1936-1985 4-speed Big Twin Harley-Davidson models with open belt or tin primary (excluding 1965-1986 aluminum primary models), 1932-1963 45 inch Flathead and custom Harley-Davidson bikes fitted with 4-speed transmissions. Iron City Motorcycles in Leeds is an authorised Harley-Davidson dealer, and transmission adjusters are the precision-thread hardware that lets a vintage Harley-Davidson primary and rear chain stay within specification across service intervals. You will find MCS's workshop-standard transmission adjusters and Samwel's specialist vintage-pattern reproductions, giving you options for factory-faithful rebuilds and custom 4-speed Big Twin Harley-Davidson builds. Whether you are refreshing a Shovelhead primary, restoring a 45 inch Flathead or sorting a custom chopper drivetrain, the correct adjuster is here. Browse the full range below.