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In Tokyo, Bridgestone unveils airless, puncture-proof tires

By | December 2, 2011, 6:55 AM PST

Automotive tire maker Bridgestone will formally introduce this weekend a new “airless” model that it says is puncture-proof.

The technology, which will officially debut at the 42nd Tokyo Motor Show beginning tomorrow, uses resin spokes to support the vehicle’s load.

Instead of running from the rim to the tread, as with conventional tires, the recyclable thermoplastic resin spokes are designed at such an angle that “the force that deforms the tread does not become a turning force,” according to Tech-On. Two sets of spokes reinforce each other for stability. (To be fair, the concept model is just nine inches in diameter.)

The bottom line is that there’s no air, which means there are no debilitating punctures, which saves on maintenance and headaches.

It’s not the first time we’ve seen “hard” wheels before, of course. The military uses them all the time in harsh environments; as for the consumer auto market, rival Michelin introduced its Tweel airless concept tire (pictured, at right) in 2006 — but that product suffered from vibration, heat and noise problems at high speeds, according to my CNET colleague Tim Hornyak.

Is this tiny model the answer? Probably not, but it’s the latest step toward a more durable — and sustainable — tire for full-size vehicles. The question is whether the price will be right.

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Andrew Nusca

About Andrew Nusca

Andrew Nusca is editor of SmartPlanet.

Andrew Nusca

Andrew Nusca

Editor

Andrew Nusca is editor of SmartPlanet and an associate editor for ZDNet. Previously, he worked at Money, Men's Vogue and Popular Mechanics magazines. He holds degrees from the Columbia University Graduate School of Journalism and New York University. He based in New York but resides in Philadelphia.

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Andrew Nusca

Andrew Nusca
Andrew Nusca does not hold any investments in the companies he covers.
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0 Votes
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Question.
How did we recycle rubber in WW II?

I keep hearing people say modern rubber tries cannot be recycled. Why?

We used to recycle tires.
Posted by Hates Idiots
2nd Dec
0 Votes
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Possible answer to your question;
Due to military demands during WWII rubber was not readily available for consumer use. This was such a problem that the Nazi's (and others) put many resources into developing synthetic rubber which is what we are really using today, and if I understand this correctly, it is the synthetic rubber that is non-recyclable.
Posted by rnlightle
2nd Dec
0 Votes
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rubber
Synthetic rubber can be recycled, just not into new tires, unless they're recapped. They can be ground up and used in road material and other things, but I think the cost is prohibitive. There have been many companies that has offered cheaper ways to recycle them, but for some reason or another it has never come to fruition. With the millions upon millions of tires in the dumps, you would think there would be a way to make a nice profit and clean up the environment at the same time....
Posted by Tinman57
2nd Dec
0 Votes
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straight line only
I can see this tire working for slow moving, straight line vehicles only. But try and take a turn with these things and the vehicle will slide off the road. These tires have no latteral capability...Modern radial tires rely on the sidewall flexing for cornering...these things are worse than the bias-ply tires used back until the 80's
Posted by tech_ed@...
9th Dec
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