Originally Posted by
RobotGuy
Ok, we finally some of the info we need.
Edit: Honestly, eliminating the 11-13 is a really drastic change. Perhaps drop the 28 and go with the ultegra 12-25, which has 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 25
12-25 is a great cassette for rolling hills-flat terrain