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Old 05-20-10 | 08:46 AM
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Andy_K
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There are an awful lot of factors that need to be considered to get the precise, correct answer.

In my experience, tire weight matters more than rolling resistance. People will tell you tire weight only matters while you're accelerating, but since you're starting and stopping all the time on a typical commute, this matters.

Different tires will be faster under different conditions. Mountain bike racers use fat, knobby tires because it lets them ride faster. Road racers use slick, skinny tires because it lets them ride faster. The bottom line is, whatever tire you get, your fitness will determine the speed. The tire might make as much as a 10 percent difference.
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