Been trying to do some research before asking, but here it goes, I currently ride a Schwinn cutter, and have a basic sealed bottom bracket (whatever came on it) and I have an older Austro-Daimler frame from the late 70's (too large for me if anyone wants or needs 60cm) and it has a Superbe bottom bracket on it. The only thing I've found is it's possibly pre Superbe Pro, but nothing for sure. Any way to know if there's a chance it'll fit without trying. If it helps it's got an ocatgon on one side. I can get pics in the morning if anyone needs. Also on a side note anyone ever heard of an aluminum frame with aluminum rear drop outs? Or are they something else?