This being a kickstarter makes it a non-starter for me but it looks pretty promising: Hopefully they work great and become popular.

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    71 year ago

    This is the best summary I could come up with:


    The Metl bicycle tire is the first consumer product we’re aware of to use nitinol, a NASA-developed shape-memory alloy made of nickel and titanium that can be trained with heat to remember its shape.

    Just be careful: the tires are being sold via a crowdfunded campaign on Kickstarter and that brings along risk, which I’d rate as high for something as cutting edge as this from a small startup.

    You’re also looking at a pledge of $500 for a pair of blue or clear Metl tires (weighing 450g with an equivalent size of 700x35c) that are “DIY easy install” onto most common road or gravel bike rims.

    Here’s a Verge video that provides a deeper dive into nitinol and its NASA origins (and future):

    Despite their memory-metal construction, the tires do provide grip thanks to an integrated all-weather tread that offers “medium low” rolling resistance, according to the campaign.

    Stretch goals (if the campaign earns enough) include making wider Metl tires for e-bikes and mountain bikes, and more road/gravel sizes and tread patterns.


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