A few years ago Jan Heine dispelled the generally held belief that narrower tires are always faster than wider tires of the same size. There are some particular and specific parameters, but it really shook up the industry. (
https://www.renehersecycles.com/12-m...es-are-slower/)
Well, last week he challenged the notion that 700 wheels roll appreciably faster than 650/26" wheels (and smaller). Again, there are specific parameters (the wheels must have pneumatic tires on them).
https://www.renehersecycles.com/why-...t-roll-faster/
As before, how a tire/wheel combination
FEELS can be different from how it
PERFORMS.