The 130 kits fit 90, 100, and 125cc smallframes, as well as 50s if a 125 crankshaft is used. 50s, 90s and 100s will need 125 cylinder studs and cooling shroud (sold separately). The 75cc kit fits a Vespa 50 with stock crank and cooling shrouds. These kits WILL NOT FIT early 60s smallframes.NOTE: Please refer to chart for additional information.