As the construction of my track bike comes to a finish (cinelli bars and stem. pictures to come soon), I'm looking through thrift stores for a cool road frame to convert.

I started thinking about cranks. I really like BMX chainrings and cranks, but what's the sizing of their bottom brackets? There are "euro" converters. What's the "euro" bb size?

I can't find much information. Does anyone know if BMX cranks (3 piece) fit on to regular square taper bottom brackets?