How Do 100-Year-Old Tires Compare To Michelin's Futuristic Airless Tires On An MX-5? | Carscoops carscoops
to see how the technology has improved up until now, and how it will evolve in the future.
To find out, the team put all three sets of tires through a battery of tests to find out how they perform. To do that, they mounted the tires toWhereas their Miata currently wears tires with a diameter of 22 inches, the hundred-year-old tires have a diameter of 30 inches. Similarly, the futuristic Tweels are also too big to fit within the Miata’s wheel wells.
That meant adding spacers. A lot of spacers. But ultimately they were able to find a setup that fit all three wheels, and was strong enough to go through their testing regimen.In addition to making the car look ridiculous, though, the size of the wheels hints at the purposes of them. Unlike modern wheels, both the Tweels and the hundred-year-old wheels are designed less for asphalt than a mix of dusty and dirty paths.
That means that the modern tires perform much better in the braking test, the lateral grip test, and the acceleration test, with the futuristic and ancient tires being rather closely-matched. The Tweels’ real weakness, though, comes down to heat dissipation. The polyurethane spokes in the tires just don’t dissipate heat as well as the air in inflated tires, meaning that they tend to overheat faster. That’s one of the major hurdles facing tire engineers when it comes to gettingThe Tweel, though, does at least perform well on the spike strip test, proving that it is as resilient as it looks.
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