Primary Offset Kits

84 products

Our range of primary offset kits for Harley-Davidson covers complete spacer and hardware kits used when offsetting the primary drive for wide-tyre custom builds or aftermarket pulley installations. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, stocks primary offset kits from Zodiac (in both Made in Europe and Genuine Zodiac Products lines), Wurth and Athena — well-established suppliers of Harley-Davidson custom hardware and engine internals. Fitment covers Dyna, FXR, Softail and FLT/Touring across multiple eras, plus Trike, Big Twin, FX and V-Rod platforms. A complete offset kit takes the guesswork out of getting the primary drive correctly aligned after fitting a wider rear wheel or moving the rear sprocket outboard for a custom build. Whether you're chasing a clean wide-tyre Softail or rebuilding an FXR with an aftermarket pulley setup, the parts you need to keep the drive aligned are here. Browse the full range below.