Citius
Guest
Because you were referring to cranks being compact, whereas it is the chainrings which are.
No. A compact crank has a 110bcd. The smaller bcd enables a smaller inner ring to be used, typically down to 34t. This is effectively what defines it as a 'compact'. The smallest inner in a 'standard' crank is 39t (poss 38t, not sure). If you have a 110bcd crank, you can still fit 53/39 rings to it (ie 'standard' gearing) but it remains a compact crank nonetheless.