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Old 08-28-2018, 07:18 PM   #25 (permalink)
freebeard
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Quote:
Makes no sense.
The type of tire does [matter?] more than their size.
As long as the outer diameter is the same, the MPG should be the same.
Unless of course, you'd be comparing crappy tires with good ones.

In fact, larger rims should give you BETTER fuel economy, not worse.
You are, of course, conflating rolling diameter with rim size. There's an aspect ratio in between.

Tall/narrow gives an equal contact patch area with less frontal area, but also less cornering ability.
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