Time to buy new tires... opted to stay with 13" 9.7lb wheels and buy Michelin Defenders, rather than buying $89 Helium 15" 11.5 lb wheels and larger Bridgestone Ecopia tires. I'll lose some gearing advantages on the freeway, but the cost is right and I'll have lower rotational mass closer to the hub. I hope the tires are good.
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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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