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Old 06-11-2019, 05:36 PM   #1
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Uptis airless tires

Interesting new concept to be used by GM. https://michelinmedia.com/michelin-uptis/
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Old 06-11-2019, 05:59 PM   #2
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How do I get my Raised White Lettering??

Interesting, and I've seen the concept for these for a while, but have yet to see them on the road. I wonder how the general public will take to it, despite its advantages.
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Old 06-11-2019, 06:09 PM   #3
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Seems to be a variant somewhat of Michelins Tweel.

The balancing problem is what has been keeping the Tweel from coming on passenger vehicles and trucks.

I wonder if this can get past that.
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Old 06-16-2019, 04:17 PM   #4
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But where do you put the TPMS?

(Sorry, could not resist )

Actually great idea, but ugly as sin to look at.... Here is an interesting thought. So how would you de-rate the LT truck version for trailer use to account for the sidewall softness? There is no sidewall on the Uptis. I doubt they will make a ST version as there may not be enough volume. I also suspect the price will be shocking as well, although I did note in one video the tire was stamped as Made in U.S.A.
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Old 06-16-2019, 07:47 PM   #5
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Quote:
Originally Posted by wmtire View Post
Seems to be a variant somewhat of Michelins Tweel.

The balancing problem is what has been keeping the Tweel from coming on passenger vehicles and trucks.

I wonder if this can get past that.

Looking at the "structure" I'd be concerned about flat spotting after the vehicle sits for even short periods.

In a conventional tire the load support is a cushion of air with a relatively small containment structure (tire body and tread). This concept relies on the structure to carry load and remain flexible at all times. Sitting in one place, especially on a sub zero day?

So far the only place I've seen tires/wheels like this used is on low speed, high puncture hazard areas like Land Fills, Salvage Yards, etc. Essentially vehicles that have speed requirements limited to around 35 mph or less. Solid fill for tires has been around for years and both balance and heat have always been the bugaboo to getting them on the road at highway speeds. Solid fill has worked pretty good on kid's bicycles though.
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