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There is a long-running debate about whether narrower tires are better. There are several, sometimes conflicting factors. A narrower contact patch can ironically have higher rolling resistance, but also have better aerodynamics for being part of it thinner tire in the air flow. And then the weight and the chemical composition of the tire matter. Is that wider tire also a low rolling resistance tire? What is the overall weight of the wider tire versus the thinner tire? Because if a heavier tire out further toward the outer diameter of the overall wheel, it has a higher rotating mass effect. Lots to think about.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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