Originally Posted by Converseahorse
Evening all,
I just wanted to come back to the rolling resistance issue. I understand now what Michael was saying, not that he was unclear, I just didn't read the black and white!
So a fatter tyre will have a lower resistance at a given pressure, but the key 'Real-life factor' is that you will always run a thinner tyre at
higher pressures. Unless you don' t want to!??

for whatever reason. Hence in a real world scenario a thinner tyre will have a lower RR.
Don't forget to also take tyre profile into account when considering resistance - is the tyre fairly square shouldered or round shouldered - generally the rounder the better. Of course different thickness/compositions of carcass makes a big difference too...
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Currently riding an MTB with a split personality - commuting, touring, riding for the sake of riding, on or off road :)