Around the early '70s when BSA/Triumph were changing piecemeal from BSW/BSF/BSC to UNF/UNC, the rest of the motor industry was changing over to metric threads


BSA B31 500 "Stargazer"
Greeves 200 "Blue Meanie"
Greeves 350
Greeves 360
GM500 sprint bike "Deofol"
Jawa 500 "Llareggub"
Aprilia RSV Mille "Lo Stregone"
'35 & '36 OK Supreme
Kawasaki ZZR1400 "Kuro no senshi"