Originally Posted by
velo-orange
piccio- I think you have pretty much muddied the waters re spindle tapers.
Count on Campy tapers to be ISO. Especially 70's era Super Record and 80's era C Record.
here's a primer on BB's:
http://info.velo-orange.com/BBBasics.html
and Sheldon Brown has a lengthy article on this as well.
A campy crank will fit on the fatter ISO spindle but it will stick out around 4.5mm further than optimal, which affects the chainline some.
Phil Wood makes 1 ISO and 2 different JIS spindles in a bunch of lengths. They do not have an 'in between' taper:
http://sheldonbrown.com/harris/botto...ets.html#sizes
With all due respect, from what I've read (in more than one place), the taper that Phil Wood advertises as JIS in fact
measures "in between" JIS and ISO, despite what they choose to call it. Furthermore, if you look at the Phil Woods site, they indicate that JIS taper is what works for pre-1994 Campagnolo cranks:
http://www.philwood.com/products/bottom-brackets/. (Which is not saying that Campagnolo was using JIS as its standard.)
There is also the implication that if earlier Campy cranks were ISO, this was at least a slightly different "ISO" from the contemporary version. Therefore, I wouldn't automatically assume that a modern ISO taper bottom bracket will work with an earlier Record crank without going too far onto the spindle, especially if the crank is a used one. Not saying it won't either. But the waters were muddied long before I jumped in.