Progressive 12-1202Bg Shock-Ps20With shock and fork spring fitments all the way back to 1949, Progressive Suspension likely has the suspension setup you need for your restoration, AHRMA racer or vintage machine. The 12, 13 & 14 Series dampers are sold as damper sets and can be mated to a number of springs to properly tune for your application. This Part Fits: Year Make Model Submodel 1979 1984 BMW R45 Base 1979 1984 BMW R65 Base 1983 Honda CB1000C Custom Base 1983 1985 Honda CB650SC