As for the Road Cassette...I race Cat 3 road and run a 34-23/21. Where I ride I don't feel there are any significant climbs to justify a 32 or 34. Also, if there is a "22" up front why the need for a 32 or 34 in the rear? Lastly, before this bike I ran a 2:1 singlespeed for 3yrs.
The only time I have felt I was wrong for running a Road Cassette is when I visit and ride with my brother in Bend, Or. There are some BIG climbs in Bend, Oakridge, and around Waldo Lake.
AND it's lighter...:thumbsup: