Originally Posted by
avole
since there is now a backlash about small/wide tyres and rolling performance,
What backlash? Road bikes are going wider and wider, we have gone from 19mm to 32mm not being uncommon. Right now 25mm is standard but this jumps to 28mm for the bumpier races, and this is with 700cc wheels, the trend is clear (and pro cycling is always decades behind). Scale it down and you need even wider since the bumps are relatively higher. You need to think about what vibrations and the shaking that high pressure tyres produce actually is. If you and your bike are being pushed up every time you hit a bump because your tyres arent deforming then where do you think that energy comes from? It isn't free. You and the bike might weigh 90kg, each bump is lifting 90kg up. It isn't magic, the energy to do so is being directly taken from your forward momentum. Run lower pressure and you are only losing the energy needed to deform the tyre rather than lift you and the bike...