Re: Rolling Resistance

On 6/20/2025 6:04 PM, Frank Krygowski wrote:

On 6/20/2025 4:34 PM, cyclintom wrote:

If you scan the rolling resistance chart all of the lowest rolling resistance is on 25 mm tires. What that implies is that the drum is entirely out of sync with the real world since wider tires with lower pressures are both faster and less likely to puncture. It is time fore the rolling resistance people to redesign their setups to have more connection to reality. My speed after two weeks off of the bike with 32 mm tires is half a mph faster than riding a lot on 28's

 I'm going to shock people by agreeing with you on one point. I do think the current test rigs for rolling resistance need serious improvement. I've mentioned that before.
 

+1
A long time complaint here on RBT beginning with Mr Brandt long ago.  Steel drum tests can be very accurately measured but what they measure leaves a void between that and our actual world.
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971