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speaking as an automotive mechanic for a chain of small midwest shops, this technology has existed for almost a century. What the article should specify is tha
by nimbius 7y ago
speaking as an automotive mechanic for a chain of small midwest shops, this technology has existed for almost a century. What the article should specify is that Michelin intends to offer a motor vehicle version of this technology, which I think is probably going to be disaster for a few reasons:
1. weight. anything thats supposed to handle interstate speeds and offer comfort is going to be heavy as it will need to be durable. id be surprised if these tweels show up with the longevity of a standard all-weather radial. Id be even more surprised if drivers dont pull into the service station for more esoteric repairs like CV joints, brakes or idler/pitman assembly changeouts as this is common in vehicles that upgrade to more rugged tires.
2. partial failure. Most people dont want to spend money on a new tire if its 40% worn and a hole or cut is in the tread. Typically a bubblegum type or kevlar patch is applied for $30 to the tire, which keeps it rolling intil its worn enough to replace. How do you repair a tweel thats received curb strike damage or a sharp object?
For those who have pointed out, yes, fork trucks and fork lifts commonly use solid tires, but thats largely due to how they work. Many forklifts can hoist in excess of 40 tons, so it makes sense to have a tire that doesnt readily compress. Its why big trucks have to have more tubeless tires for larger loads. The plastic or rubber tires on forklifts also have a quick re-tread option. The tires often dont even need to be removed, as they have more treads that can be created by pulling out zip-tie like spacers in the worn tread. other models use a hot-iron type re-treader. that being said, forklift tires are very heavy and so are the wheels, and neither last very long at full-speed.
- maxerickson 7y agoIf they are deploying it on some subset of 1 small car in 5 years, it probably won't be anything worse than a boondoggle.
- tempguy9999 7y ago> The [forklift] tires often dont even need to be removed, as they have more treads that can be created by pulling out zip-tie like spacers in the worn tread Wow, that's clever. But it does make me ask, tread is AFAUI for dealing with water on the ground, and I guess also when the vehicle's going at speed. Forklifts AFAIK operate mainly indoors, and even then they never get up to any speed that I've ever seen, so why treads at all?
- nimbius 7y agoforklifts sometimes exit warehouses and load flatbed trucks, not to mention some manufacturing facilities may have areas with slick floors or areas where rain may reach (near the docks mainly) so tread is generally provided. speaking from experience, the tread can help with gravel patches too. you can order treadless tires as well.
- tomcam 7y agoI love all your posts. Please harvest the email address in my profile in case you ever start a blog.
- WorldMaker 7y agoStarting the testing with EVs seems to imply that they feel they have a solution for weight, I would presume, because EV weight management is a huge focus. (Weight is much more obviously and directly influential in an EV's mpkwh/mpge than in an ICE vehicle's mpg. Brags about weight savings are huge in the EV sector, including cars advertising even the rolling weights of their tires versus their competitors.)