These ties have NO AIR in them. They were created by Michelin to stop flat tires and the large amount of resulting rubber waste. They work by combining an aluminum wheel and an outer structure made from a flexible but strong material called glass fiber reinforced plastic

But Michelin and others, including NASA, have been working on airless tires for years… so why don’t we have them yet??

Well, turns out air is really good at dealing with the heat and pressure that builds up in the rubber as your tires get repeatedly compressed and decompressed under the weight of the car. A tire fully inflated with air also deforms less, making it more efficient for your engine to rotate it.
A stable, cool, and efficient airless tire is really tricky! But Michelin says they should be available for purchase by the end of this year.

We’ll see! I’d love to never get another flat tire.

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