Originally Posted by
mcours2006
Well, I shouldn't say you can't. I can always just swap out the 5700/7900 cranks for 5800/6800 cranks and get the 50/36 cranksets. But if I do that I might as well go 11-speed.
You could go 50/39(maybe even 38), but you'd have to go with non-Shimano rings.