I prefer a 2 tooth diff., sometimes 3, depending on the profile and length of ride. But I like to stick to just one cog if at all possible the entire ride. I don't like the hassle of flipping the wheel, unless it's a very long ride (like a double century). If there's short, impossible hill, I'll walk it.
Last edited by roadfix; 02-17-08 at 05:10 PM.