Radical airless tyre has half the rolling resistance and is cheaper to make
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April 30, 2005 http://www.gizmag.com.au/go/3603/" target="_blank">Michelin’s radical new Tweel announced in January this year looks set to be the next big thing in tyre technology but recent news from Amerityre on a very similar technology suggests there will be strong competition in the airless tyre market, as more than one manufacturer is close to market. Amerityre has successfully completed high-speed testing of its experimental non-pneumatic or “zero-pressure” polyurethane tyre in testing for FMVSS 129 compliance, the safety standard governing the testing of non-pneumatic car tyres. The advantages of the polyurethane tyre are many according to Amerityre including much cooler running temperatures (less wear), much lower rolling resistance (amounting to a reported 10% decrease in fuel consumption) and the ability to produce a complete tyre inside a few minutes significantly simplifying and reducing the cost of the manufacturing process.
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