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Reinventing the Wheel: Non-Pneumatic Tires

Polaris Defense, a division of Polaris Industries Inc., recently introduced the Non-Pneumatic Tire (NPT).
 
These airless tires are designed to not go flat. A honeycomb-like structure inside keeps the tire rigid without the need for an air-filled cavity found in normal tires. That way, a NPT can never lose pressure if damaged because it has none to begin with. And the web is surrounded by a rubber tread band which allows continuous operation, even if up to 30 percent of the web is damaged. No more flat tires? Sounds good to me.
 
Richard Haddad, Polaris Defense General Manager, said they “have tested our NPTs over 5,000 miles with a .50 caliber bullet hole and the performance exceeded expectations.”
 
Polaris didn't invent the technology. It bought Wisconsin-based Resilient Technologies, a 12-person start-up that first made airless lawn mower tires, in April and sought to jazz it up for bigger applications.
 
These tires sound great on paper, but will they work in real-world ATV use? They seem to work great at slow speeds over rocks and in sand but I'd like to see them used in thick mud or snow. I would imagine that the grid would get filled up with ice and mud and throw the tire off-balance.
 
NASA believes in the NPT technology and outfitted the new Lunar Rover with a custom version of Michelin’s Tweel on its 12 wheels.

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from JM wrote 1 year 14 weeks ago

I want to see how these tires do when you need to turn while going a decent speed.

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from BiggBucks wrote 1 year 15 weeks ago

I heard about these a little over a year ago and had only seen them on fancy sports cars and never on a truck. while this video shows its slow speed capability, i too would like to see this tire in mud as deep as the bottom of the rim and make it out. Also I want to see this tires performance in the snow. The price of these tires would not be cheap and while you save some time and hassle with no flat tires, is the overall cost worth it?

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from Blue Ox wrote 1 year 15 weeks ago

One would think there would be covers availble for the sides of the tire, kinda like a hubcap to keep everything out.

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from Blue Ox wrote 1 year 15 weeks ago

One would think there would be covers availble for the sides of the tire, kinda like a hubcap to keep everything out.

+1 Good Comment? | | Report
from BiggBucks wrote 1 year 15 weeks ago

I heard about these a little over a year ago and had only seen them on fancy sports cars and never on a truck. while this video shows its slow speed capability, i too would like to see this tire in mud as deep as the bottom of the rim and make it out. Also I want to see this tires performance in the snow. The price of these tires would not be cheap and while you save some time and hassle with no flat tires, is the overall cost worth it?

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from JM wrote 1 year 14 weeks ago

I want to see how these tires do when you need to turn while going a decent speed.

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