Originally Posted by
norskagent
okay then here is a theory - since "low profile JIS" is similar to ISO (or so I have read), and my crank is (I guess) low profile JIS, my spindle may be "regular" JIS, which would situate the crank further outboard, according to St. Sheldon:
" If you install an ISO crank on a J.I.S. spindle, it will sit about 4.5 mm farther out than it would on an ISO spindle of the same length."
Another point of reference to possibly confirm if the ISO/JIS difference is the issue, would be to check the Q factor (thread distance).
This is part of a chart that I copied a while back. It is still floating around web. Don't know the original source so can't confirm if it is 100% accurate, so FWIW.
Don't know if there's a better source to get the Q info for your crank.
