Has NASA just invented a puncture-proof tyre that will last the life of your bike?

Airless wire mesh tyres originally invented for the Mars Rover are being developed for bikes and are hitting the market this year - and they could be the last ones you ever buy

SMART tyres
(Image credit: SMART Tire Company)

A NASA-affiliated company set up to develop a new category of tyre could be one small step closer to a giant leap for the future of transportation. 

The SMART Tire Company was formed with the aim of commercialising an airless alloy tyre called METL (Martensite Elasticized Tubular Loading) that was originally invented for space exploration. SMART is an acronym for Shape Memory Alloy Radial Technology.

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Simon Smythe

Simon Smythe is a hugely experienced cycling tech writer, who has been writing for Cycling Weekly since 2003. Until recently he was our senior tech writer. In his cycling career Simon has mostly focused on time trialling with a national medal, a few open wins and his club's 30-mile record in his palmares. These days he spends most of his time testing road bikes, or on a tandem doing the school run with his younger son.