Originally Posted by
tarwheel
I would like someone to explain the physics that would enable a tire with a latex tube to roll faster than a butyl tube. I can understand how the rubber on the outside of a tire could affect rolling resistance, but cannot understand how a tube inside a tire could affect it. Maybe I'm missing something.
I can't give a real technical answer, but I am under the impression that a supple sidewall is key. It seems to me as if a tire with a thick tube would tend toward acting like a tire with a stiffer sidewall. That effects ride feel and rolling resistance both.
Someone correct me if I am out of my depth.