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Old 04-23-2019, 09:43 AM   #3 (permalink)
Ecky
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A narrower tire will have less angular momentum and will decrease energy lost in stop and go traffic. It will also improve aerodynamics. However, an 80 aspect ratio is really tall, and suspension will be better tuned for the 175 width. The tread compound will probably hurt more than the rest helps. I doubt rolling resistance will be lower. I'd also vote for the 175's.
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