You are looking for a suspension setup for a restoration, AHRMA racer or vintage machine. For all those who don’t know, Progressive Suspension, America’s Premier Manufacturer of motorcycle suspension, offers shock and fork spring fitments all the way back to 1949.
The 12, 13 & 14 Series Progressive Suspension shocks are sold as damper sets and can be mated to a number of springs to properly tune for your application. Not knowing what you want? The company offers a cool online widget letting you search by year, make and model. Doctor Progressive Suspension (it’s a lady!) answers immediately after you enter your information… Try your search at Progressive Shocks Search.