Originally Posted by
onespeedbiker
I figured what is needed here are more compatibility issues. FYI most Suntour cranks have a JIS taper except for the Track that use an ISO taper, so it's probable that your Superbe crank is JIS and the Superbe track BB spindle you are looking at is ISO. OTOH if you have been using a post 1978 Campy BB, then you may already have a JIS/ISO mismatch, but it seems to be working fine for you (a JIS crank /ISO spindle mismatch will move the crank about 4.5mm farther out on the spindle). Just saying
No taper mismatch. I had read on Sheldon Brown site that suntour in the 80s used a proprietary spindle different that either standard but closer to ISO so campy was recommended, which is why I used Campy.
http://www.sheldonbrown.com/suntour.html
I dont know about all Suntour, but the suntour spindle I have, which is no doubt a match for my cranks (mid 80s superbe pro road cranks and spindle) , is quite clearly the same taper as the campy spindle I am using. Both spindles visibly different that the shimano BBs I happen to have lying around.