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Skinnier, lighter rear tires?
I have been reading some old posts, going back a couple years, on smaller and skinnier rear wheels. I still have a question about smaller and skinnier (thinking about tires). If I have 15" rims and plan to run 205/65-R15s on the front, how might I lighten or make more aero the rear tires using the same 15" rims? Can I run 175/65-R14s? It is possible to fudge the 14/15 thing a little, no? The Bridgestone Ecopia EP100s are just 14lbs at that smaller size. I thought I would maybe run the 205s on the front for taller gearing and the 175s on the back for aero, rotational mass, and easier fit behind skirts. Am I nuts or just wrong?
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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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