Quote:
Originally Posted by CapriRacer
My emphasis!
Part of the problem with testing bicycle tires is that narrow tires require MORE pressure to carry the same load than wide tires. The testing needs to be done at the same load carrying capacity - ergo, different pressures.
This problem is also present in passenger car tires, but to a much lesser extent because a difference of 10 mm width is almost nothing for a passenger car tire.
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A recent test at bicyclerollingresistance addresses this issue. They did tests with multiple controls, the important one here being same tire drop(probably load capacity too). The rolling resistance turned out to be extremely close.
https://www.bicyclerollingresistance...000-comparison