Hmmmm.....Timely thread. My bike came with 46/36 and 11-32 in the rear.

I put a 48/32 up front and I have improved rather dramatically over the year. Enjoying group rides and such, I'm 203# so I'm not a fast climber, I'm more concerned with joint stress there but my endurance has increased considerably. I never use the 32 anymore and I have been feeling the gaps when riding flats. I average in the 90s on flats, I really like the feel of 100-110...I get a bit bouncy beyond that.

I've been seriously considering tightening up the rear and going with a 13-28 cassette. Miche Primato Light: 13-14-15-16-17-18-19-21-23-25-28. that would cover 99.9% of my riding..I do like descending and am mildly concerned with what I may lose there dropping the 11-12, if I discover that I've overcompensated I'll go up to a normal compact crank.

So...Using Mike's Tool the charts:

Current:



Proposed: