Originally Posted by TheSame

might want the 11 for the downhill. I'm currently running a 50-34 with a 12-28. On the downhills, I spinout with my 50 x 12t.

120rpms w/ 50x12T... puts me at about 39mph. I had a hard time keeping up with my friends on the downhills. They are running compact with 50x11t.

I used to run a 11-28t... but I don't like the big gaps. So I went with 12-28t. I'd rather sacrifice the top end (11T) and have my climbing gear (28T) with smaller gaps. I have a high cadence, so large gaps between gears really bugs. me.