Originally Posted by
redlude97
The difference in GI between 39x27 and 34x27 is almost 15%, how will that not make much of a difference?
sheldon's shows it as 14.2%, which is almost 14, not almost 15 . . . ok now I'm just being a PITA for the fun of it
he asked about going from a 39 to a 36 not a 34, and even all the way to 34, 15% isn't that much when you consider that just changing from 27 to 30 is almost 12% and a 32 is another 6.5%, so a simple cassette and DR change would give him 18% for half the money or less. no brainer.