FINNEY1973
Senior Retro Guru
This is where I usually ask questions but I think (according to velobase.com) that Suntour had English/ISO: 1.370" x 24 threads. If this is the case then all you need is a new freewheel with the same threads - this is where I get a bit lost as often the threads aren't specified - am sure of the much more knowledgeable folk will advise better than I can.
Needs to be a screw-on type - cassette fittings simply aren't compatible.
Worth a punt on trying a 7-speed if your shifters & rear mech can handle it? - if not go with 6 speed.
Needs to be a screw-on type - cassette fittings simply aren't compatible.
Worth a punt on trying a 7-speed if your shifters & rear mech can handle it? - if not go with 6 speed.