I recall a discussion on HN explaining that while true, this might be offset by the higher average weight of EVs, leading to more dust from the tires and the road. Again, no easy solution unfortunately, just trade offs.

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coryrc 3 days ago | parent | next [-]

And to add info, an F-150 will change brake pads 3-7 times over 200k miles, while a Model Y will still be on the original set with nearly no sign of wear.

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fsckboy 3 days ago | parent [-]

but compare the wear of the tires, and weigh tires vs brakes by the amount of "total pollution delivered to the environment", i.e. 20% more wear of something that is 2x as polluting is 40% more pollution. I don't know the numbers or the answer, I'm just saying it's not as simple as your statement makes it out to be.

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coryrc 2 days ago | parent | next [-]

Why are you just making up numbers then saying "it's not as simple"? Try educating yourself a little first instead of just jumping to conclusions which reinforce your existing biases.

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brailsafe 2 days ago | parent | prev [-]

> 20% more wear of something that is 2x as polluting is 40% more pollution

If an equivalent car wore down its tires 20% slower, and those tire particles contributed 2x the intensity of pollution than other types of wear-based pollution, than the increase in produced pollution from that source seems like it would be ~16%, not 40%.

If one car drives 100 km and produces 2 units of pollution per km, that would be 200 units. Another car wearing 20% more would produce 240 units, or roughly ~16% more.

	▲	yunwal 2 days ago \| parent [-]
		> Another car wearing 20% more would produce 240 units, or roughly ~16% more. This is some Fermat’s Last Theorem shit

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iambateman 3 days ago | parent | prev | next [-]

If that were true of tires, you would expect an EV’s tires to get substantially less range before wearing out…which I don’t believe is the case.

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rconti 3 days ago | parent | next [-]

IME they only wear out maybe 15-20% faster than you'd think. On the other hand, over the span of 40,000 miles, a tire loses a LOT more rubber by weight/volume than a brake pad loses pad material. No idea what the PM2.5 breakdown is though.

	▲	bryanlarsen 3 days ago \| parent [-]
		The difference is that only about 1% of the worn rubber ends up in the air whereas most of the brake pad ends up in the air. Most of the worn rubber stays on the road. Where it will get washed away by the rain to end up as microplastics in the water.

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pif 3 days ago | parent | prev [-]

It is actually the case!

That's why your choice of tires on online sites gets so smaller as soon as you tuck the "electric/hybrid vehicle" case!

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t_tsonev 3 days ago | parent [-]

Specialized EV tires are also optimized for drag and noise, wear is just a factor. Anecdotally speaking I'm at over 80k km on a set of EV tires with at least 20k more to go. The issue has more to do with driving style and engine power than any other factors.

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l1tany11 3 days ago | parent [-]

100%. Tire technology is a real thing. Tires have advanced a ton in the last 10 years. But driving style is the biggest thing. Some people can only get 10k miles out of a set of tires, while others with the same car and tires get over 40k.

But they do care about tire wear a lot, they know the acceptable wear life for the class. A couple years ago I bought a set of Pirelli tires that were ~50% off because they were an older version; hoping I’d get some benefit. Unfortunately they had half the life and were a bit worse in every way than the newer tires I had before and after.

	▲	bob1029 2 days ago \| parent [-]
		Some tires are going to wear fast no matter what. I had some Pirelli PZero summer tires that I could never get more than 15k out of regardless of how I drove. The tire compound was very soft and sticky. If you have something like really high performance tires, I recommend just using them. The grip is always there and you are always paying for it. As long as you aren't losing traction constantly, the difference is negligible in my experience.

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coryrc 3 days ago | parent | prev | next [-]

Additional weight (which is minor; of best-selling vehicles, F-150 curb weight is 4000-5600 lbs, Tesla Model Y is 4400-4600 lbs) does not meaningfully increase brake wear because the brakes don't get used.

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rcpt 3 days ago | parent | prev [-]

That sounds like a stretch tbh