Quote Originally Posted by caligurl View Post
.... but as far as going 2-3 mph faster like so many claim.... nope.... didn't happen!
I think that usually comes from getting a bike that fits, rather than one that is lighter, stiffer etc.

I did experience this when I went from my Trek to my Fuji - I went from a 48cm touring geometry bike (long top tube) to a 44cm compact geometry bike and immediately, out of the box experienced a speed jump. This was due more to the fact that suddenly I was using leg muscles that weren't in play with the old frame than in the weight or stiffness differences.