# Tyre (tire) speeds

**URL:** <https://boards.straightdope.com/t/tyre-tire-speeds/661118>\
**Category:** Factual Questions\
**Created:** [June 16, 2013, 12:49pm UTC](https://boards.straightdope.com/t/tyre-tire-speeds/661118 "2013-06-16T12:49:47Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![bob\_2](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bob_2/32/3341_2.png) [@bob\_2](https://boards.straightdope.com/u/bob_2)\
**Post date:** [June 16, 2013, 6:35pm UTC](https://boards.straightdope.com/t/tyre-tire-speeds/661118/21 "2013-06-16T18:35:22Z")

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> [@](#):
>
> But from the point of view of the tire, all parts of the tread are moving at a constant speed and are being accelerated toward the center by a constant amount. The magnitude of their velocity vector is unchanging, but its direction is.

Thank you for stating it in scientific terms. I am afraid that Septimus was TOO scientific for me.

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