Originally Posted by Anders K
I know of italian-, french-, english- and ISO-threading. Standard thread, is that ISO-threading?
I have an other Regina freewheel, 5-speed, marked with "REGINA CORSA 2 ITALY 79" and it was sold to me as italian threded freewheel on ebay. Should not the freewheel be marked with the kind of threading it has?
Yes, they are marked, but you have to know the codes. Here are the Regina codes:
ISO - 3 grooves on back
English - 1 groove or F.I. stamped on back
French - 2 grooves or F.F. stamped on back
Italian - no grooves or stamping on back
ISO is marginally different than English in diameter (0.005") but completely interchangeable, so consider ISO and English to be standard.