Tyres without air: This is how the technology works

by Flo

Michelin presents a tyre that works without compressed air with its Uptis prototype. We reveal what is behind the new technology and what advantages the Uptis model has over conventional car tyres

Car tyres without air – that’s what’s behind it

Although the Michelin Uptis is only a prototype so far, the new type of tyre is expected to go into series production as early as 2024.

  • The abbreviation Uptis stands for ‘Unique Puncture-proof Tire System’ and refers to the puncture resistance of the new tyre type.
    • The Uptis tyre system is based on the principle of the spoked wheel, in which the stability of the tread is ensured by evenly spaced spokes.
    • Instead of spokes, the Uptis wheel has flexible discs around the wheel axle that are directly connected to the rim.
      • The sipes are made of a mixture of polyester resin, rubber and carbon fibres and are designed to effectively absorb shocks or vibrations due to their flexibility.
          The individual components of the Uptis-Tweel are manufactured using a 3D printing process.

          The advantages of the new technology

          Probably the biggest advantage of this new technology is that it is puncture-free. Flat tyres or damage to the carcass are a thing of the past with the Uptis.

          • The type of tyre unveiled by Michelin is said to be more robust and quieter overall than conventional car tyres.
          • Furthermore, the new tyre system promises higher performance and durability compared to the classic, compressed air-based tyres.
          • In terms of ride comfort, steering precision and damping characteristics, the Michelin Uptis is said to be comparable to normal tyres.
          • Michelin also points out that the production of the Uptis is comparatively environmentally friendly and resource-saving.
          • The manufacturing process is said to use less material and produce less waste than the production of conventional tyres.
            • In addition, almost 100% of the resulting production waste can be returned to the material cycle and thus recycled.

            However, until the Uptis can be mass-produced and the new technology has established itself in the automotive industry, you will still have to reckon with classic tyre punctures. You can find out how to drive with a flat tyre in our next practical tip.

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