Originally Posted by
AzTallRider
But you have me confused on the 18, Jet:
11-12-13-14-15-16-17-19-21-23
12-13-14-15-16-17-19-21-23-25
12-13-14-15-16-17-18-19-21-23 <= Shimano only, and the only 18 in that general range.
I agree you want tight spacing in that 17-19 range.
Don't be confused, I was wrong. The cassette on my CF race wheels is 12/23 and my training/riding wheels is 12/25. If I race with the PowerTap wheel I switch cassettes to fit the type of race.