Originally Posted by
Bacciagalupe
Raxel: iBike should be interesting...
It's not as good as a real power meter, but it may be the only option for a 20" wheeled bike.
A correction to your post, though.... Small wheels have more rolling resistance; see
http://www.users.globalnet.co.uk/~hadland/rolrec10a.pdf for details. I believe the issue is that the tires, and therefore the contact patch, is wider; the shape may also have an effect. Smaller wheels are faster because, even with wider tires, they are aerodynamically superior to 26" / 700c.
Look again. That table actually shows that the small wheels are up there with the best of them. It most certainly does not show that smaller wheels are worse. Especially considering that small wheelers have to use the rather small selection of tyres available and compete against the best the industry throws forward for 700c.