Quote:
Originally Posted by buschman
I recently got some Michelin X-ice tires for my winter set. I thought they would tank my MPGs. However I was wrong. They maintained a similar, or at least non perceivable, difference in MPGs. The cold weather had far more impact than the tires. I'm wondering if my tread width will be a similar difference. Too small to notice. Or if lightening the wheels 4 lbs. each will have such a positive gain, that the increased rolling resistance of the tires will be over shadowed.
Thanks again for your suggestions.
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The difference in rolling resistance if sticking with the same tire model is probably negligible, but the increased width won't do your aero any favors. I'm guessing you might see a 1 MPG drop, probably nothing crazy.
What width are your winter tires?