Progressive Suspension

Progressive Suspension has grown to become the largest aftermarket motorcycle suspension manufacturer in the United States, recognized as a top-tier supplier of Harley Davidson suspension components to domestic OE customers. Our advanced suspension systems are a staple on premier customs, production trikes, and high-mileage bikes across the U.S. and globally.

What Progressive Suspension Makes

Progressive Suspension builds motorcycle suspension - rear shocks from base replacements to remote-reservoir and adjustable units, fork springs and front-end cartridge and lowering kits, preload adjusters, and the bushings, spacers and fitting hardware that go with them. What we list from Progressive Suspension moves as the catalog moves.

Fitment

Progressive Suspension fitment is specified part by part, and coverage is not uniform across platforms or model years. Check that the fitment list on the product page names your model and year before ordering.

Fork Diameter Comes First

Fork tubes, lower legs, cartridges and trees are all cut to a diameter - 35mm, 39mm, 41mm, 43mm and 49mm front ends are not interchangeable, and a great deal of fitment comes down to that number rather than the model name. On shocks, length is a real decision: shorter drops the bike and costs travel and ground clearance, longer changes the geometry. Match spring rate and preload to your weight and how you load the bike.