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Old 03-09-2018, 04:19 AM   #21 (permalink)
RedDevil
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Red Devil - '11 Honda Insight Elegance
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Quote:
Originally Posted by ksa8907 View Post
Now take those red boxes and imagine them at half their height. Is the distance from the axis greater or lesser?
That distance is not relevant, is it? The boxes would be just as close together.

If there are 20 boxes around the wheel, each rotation would involve 20 boxes and 20 gaps in between them, and the gaps would be just as wide even if the boxes are worn to half their height.

The distance traveled each rotation is not the same as the circumference as measured over the tread surface, as that gets squeezed together in the contact patch.
It IS the same as the circumference measured at the heart-line of the belts.

Look at the snow in the grooves after a drive. You'll see it has been flattened in the longitudinal direction. That happens in the contact patch.

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Last edited by RedDevil; 03-09-2018 at 04:27 AM..
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