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" The cold burden of changing tires with the seasons will soon come to an end. Thanks to the first retractable studded tire, starting this winter drivers will be able to install -- and uninstall -- their winter-driving treads at the push of a button. Developed by Q, a South Carolina start-up company, the Celsius tire has two inner air chambers -- imagine a rubber outer doughnut wrapped around an inner doughnut. When activated, air pressure from the inner doughnut is transferred to the outer doughnut, forcing built-in spikes embedded in the outer tread to the surface. (A process you can see above.) Conversely, when deactivated, the studs retract back into the rubber. The tires can be deployed twenty to thirty times without needing more air. Though pricing is still being worked out, the company claims that with an average life of fifty thousand miles, the tires will prove more cost-effective than changing sets with the seasons. Plus you&amp;#039;ll never again have to kneel by the side of a blustery road putting on snow chains. qtires.com. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.esquire.com/lifestyle/cars/a3276/snowstuds0907/>