How old is the Miche BB. They were ISO taper at one point but switched to JIS taper in the last year or two (maybe earlier than that). The old ISO taper BB's if I am not mistaken have adjustable cups. The newers don't. A stronglight chainset will be for JIS taper BB's.
A shim on the rear hub could sort the problem. It is more likely to be poor tolerances on the tapers on the chainset and BB.
How old is the Miche BB. They were ISO taper at one point but switched to JIS taper in the last year or two (maybe earlier than that). The old ISO taper BB's if I am not mistaken have adjustable cups. The newers don't. A stronglight chainset will be for JIS taper BB's.
A shim on the rear hub could sort the problem. It is more likely to be poor tolerances on the tapers on the chainset and BB.
The hub being off though is poor though.