I've ridden a ton of tires.
I find 28's to be the perfect mix of rolling resistance and shock absorption, at least in NYC.
We have some pretty bad roads and Cobble stones.
In Colorado I road 25's comfortably.
If you have fairly smooth roads I'd say 25's.
If you have flawless roads or don't mind riding on rocks go with 23's or less.
If you want to ride on a cushion of air or live in a warzone, go with 32+, it is so awesome. You can ride over anything.
Last edited by beeftech; 07-20-09 at 07:03 PM.