Not sure if the castings are similar but I'm just swapping out a Sugino RD2 crankset that was ran on a 103 bb. I can't tell you the exact chai line as I never measured it. Looked ok though (not much help I guess).
Ah, note that RD2's are a JIS taper and S75's are an ISO taper.
Miche also changed tapers from the older to newer style cranks, old being ISO and new (current) style being JIS - it depends which Miche version cranks you are planning to use :)
Not sure if the castings are similar but I'm just swapping out a Sugino RD2 crankset that was ran on a 103 bb. I can't tell you the exact chai line as I never measured it. Looked ok though (not much help I guess).
Jon.