At the moment I have a 50/34 double on my 'cross bike using a hollowtech II bottom bracket.
I understand that with a 110BCD crank the 34 is my limit. What I'm wondering is if I could buy a mountain bike triple, say a 44/30/22 and remove the 22 ring and use it as a very compact double for my 'cross bike.
I'd prefer to stick with the current BB as when summer comes round I'll be back on the road more and wanting the 50/34. But off road and with my love of spinning low gears the bike is completely overgeared.