What about time trials then? I think some riders do use 650c, a size closer to 26". And time trials really are all about speed rather than tactics with the long ride days.
I'll guess the reason 700c wheels are used is a combination of frame tradition and tyre availability, and the fact that bigger wheels handle bumps a little better. There might also be a rotating weight/momentum argument in there as well for good measure.
From personal experience I've found that my bike with 700c wheels always feels faster than any of my bikes with 26" wheels -but I know it's far from scientific as usually my 26" wheels are heavier, attached to a heavier frame (e.g. tourer or mtb) with a more upright position, have different gearing and slightly wider tyres at a lower pressure. So I'm not convinced they really are faster (or slower) if all things were equal except for the wheel size.
Originally Posted by
ricohman
No way I will believe that, ever. I have smooth Panaracers and Michelins on my MTB. Very good yes, as responsive as my 700C tires, nope.
If 26 inch wheels had less rolling resistance you need to come up with some type of proof to make a believer out of me.
I wonder if TDF riders will all switch to 26 when they hear of this.