Live data from Hacker News

Michelin Airless

michelin.com

101–110 of 316 posts

Re: Michelin Airless

#101
post #97

Earlier quoted context omitted.

A lot of heavy equipment drives around with water-filled tires, so it's already there. Definitely not what you meant though.

Hmm, why water filled? I can't think of any advantages, but can think of downsides such as a massive increase in unsprung weight.

Ballast for increased traction and tipping capacity with the positive side effect of lower COG.

Re: Michelin Airless

#102
post #97

Earlier quoted context omitted.

A lot of heavy equipment drives around with water-filled tires, so it's already there. Definitely not what you meant though.

Hmm, why water filled? I can't think of any advantages, but can think of downsides such as a massive increase in unsprung weight.

Sounds like it’s used as ballast: https://tractoraddict.com/tractor-tires-filled-with-water/

Re: Michelin Airless

#103
post #97

Earlier quoted context omitted.

A lot of heavy equipment drives around with water-filled tires, so it's already there. Definitely not what you meant though.

Hmm, why water filled? I can't think of any advantages, but can think of downsides such as a massive increase in unsprung weight.

https://tractoraddict.com/tractor-tires-filled-with-water/

Beet juice is interesting! lol

Re: Michelin Airless

#105

Weren’t we trying to reduce plastic waste? This seems to need multiple times the amount of rubber that a normal tire needs. And for what? To prevent a fixable puncture that may or may not happen in a lifespan of a tire?

Have you ever been driving when a tire blew out at high speed? It's extremely dangerous not only for the driver but all the nearby cars.

This is a tradeoff between environmental concerns and safety, as are most safety features on a car. We could make a car that gets insanely good milage and has little raw material, but it would be terribly unsafe.

Re: Michelin Airless

#106

The magic of the pneumatic (air-filled) tire is that the entire air-filled space of the tire acts to absorb shock and vibration from the road surface. Airless tires give up this advantage, and only the tire structure between the wheel and contact patch are available to do the same work. The result is always a heavier tire that is a harsher ride. All the materials science in the world can't and won't find a solution t…

or a country that has its roads together like japan and china

Re: Michelin Airless

#107
post #54

I wonder if the rubber structural spokes could be shaped to pull air from the underside of the vehicle (tire rotation would be slightly more complicated) to increase stability at higher speeds.

Or cooling. There also might not be expansion with increase temperature?

Re: Michelin Airless

#108
post #92

"Every year, 20%* of tires are discarded as scrap " Really? They cite a survey, but don't link to it.

The number doesn't seem to far off. I have summer and winter tires, replace them every 6-7 years. Lots of people drive more than I do.

Re: Michelin Airless

#109

Wouldn't these be great for trailers? Trailer blowouts are common, and often unnoticed, or can heavily damage the trailer. I have no interest in these on a car, but for a trailer, sign me up!

I think they'd be better for trailers than cars because all the tradeoffs people are complaining about (small increase in rolling resistance, NVH, inability to air up for increased load or down for comfort) are far lesser in a trailer application. Combine that with all the trailer tires that go bad from long term exposure to the elements before they get worn out and it seems like an obvious application.

But..... one of the most important aspects about trailer tires is cost and these may not quite be there yet. Michilin and other tire manufacturers don't really compete much in that space and leave it for the low end import brands to fight over.

Rental trailers and towed equipment (like towed light plants and air compressors) seems like the only obvious niche where both the cost and downsides are justifiable.

Re: Michelin Airless

#110
post #92

"Every year, 20%* of tires are discarded as scrap " Really? They cite a survey, but don't link to it.

I don't drive that much and still feel that changing tyres every five years is pushing it.
Post reply on HN