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I sometimes read the motoring section of different papers and found this.
www.thesun.co.uk/motors/18847466/electric-car-disa.../
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www.thesun.co.uk/motors/18847466/electric-car-disa.../
Twaddle!,
it is no more complicated to buy a tyre for an EV than any other vehicle. You buy a replacement tyre which meets the required spec. No rocket science, nor 'experts' at Continental Tyres needed.
Having tyres that can carry the weight of the car is always important, no matter the motor.
But on an EV, there’s the extra weight of the battery to take into account too.
The battery on an EV is an integral part of the weight, not an addition to it!
Edited by badbusdriver on 12/06/2022 at 16:13
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I think that's a bit of a puff piece mate. I have an EV. I need 225 55 R18 99v as long as you get the load rating right and the other bits right that's all you need. I always pick the best compromise between noise and wet grip etc anyway. Certainly not going to pay extra for so called 'special EV tyres'. Matter of fact I priced up the tyres before I bought it. Didn't want any nasty surprises a few years down the road. 150 a corner so not too pricey. Oh and it's done 3k now and while I was checking it over last week I stuck a tyre depth gauge on it. Seems to be wearing normally to me.
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I think that's a bit of a puff piece mate. I have an EV. I need 225 55 R18 99v as long as you get the load rating right and the other bits right that's all you need. I always pick the best compromise between noise and wet grip etc anyway. Certainly not going to pay extra for so called 'special EV tyres'. Matter of fact I priced up the tyres before I bought it. Didn't want any nasty surprises a few years down the road. 150 a corner so not too pricey. Oh and it's done 3k now and while I was checking it over last week I stuck a tyre depth gauge on it. Seems to be wearing normally to me.
At 3,000 miles I would expect wear to be barely noticeable.
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I just went and looked at mine. Michelin Primacy 4 - available at all the usual places.
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And you'd be correct. But I checked as I've been reading that EV tyres wear at an alarming rate. Plus I own an digital tyre depth gauge. Perhaps if I did more traffic light grand prix starts.....but that's not my thing.
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Tyre companies are developing tyres specifically for EV’s - a more durable compound to handle sudden torque inputs, lower noise levels because you can’t mask tyre noise behind engine noise, etc.
A non-EV tyre of the correct size and ratings on an EV will wear considerably more quickly than one made for use on an EV.
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Tyre companies are developing tyres specifically for EV’s - a more durable compound to handle sudden torque inputs, lower noise levels because you can’t mask tyre noise behind engine noise, etc. A non-EV tyre of the correct size and ratings on an EV will wear considerably more quickly than one made for use on an EV.
Shouldn't we just put the special EV tyres on all cars then? More traction, less noise sounds good to me.
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Tyre companies are developing tyres specifically for EV’s - a more durable compound to handle sudden torque inputs, lower noise levels because you can’t mask tyre noise behind engine noise, etc. A non-EV tyre of the correct size and ratings on an EV will wear considerably more quickly than one made for use on an EV.
Shouldn't we just put the special EV tyres on all cars then? More traction, less noise sounds good to me.
Sounds a good idea to me too - what's the standardised marking for EV tyres - or is it just marketing BS?
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Tyre companies are developing tyres specifically for EV’s - a more durable compound to handle sudden torque inputs, lower noise levels because you can’t mask tyre noise behind engine noise, etc. A non-EV tyre of the correct size and ratings on an EV will wear considerably more quickly than one made for use on an EV.
Shouldn't we just put the special EV tyres on all cars then? More traction, less noise sounds good to me.
Sounds a good idea to me too - what's the standardised marking for EV tyres - or is it just marketing BS?
It sounds a bit like BS to me. First, there is no mention of greater traction on mcb100's post, only 'a more durable compound to handle sudden torque inputs', not the same thing. The problem with getting more grip (including traction) is that it will generally come at the expense of durability, noise levels and economy because softer and stickier compounds are what is needed for ultimate grip. I'm still really not convinced that EV's require anything other than just a tyre with the correct weight rating. Yes, electric motors can deliver all of their torque at zero revs, but AFAIK most are restricted to a degree to preserve the drivetrain. Going back to that weight rating, putting a tyre designed to deal with a 2 tonne EV on a 1.25 tonne ICE car is almost certainly going to result in a harsh ride, so not ideal.
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I was in a tyre place last week getting some new rubber on a van and got chatting to the fitter as you do and he talked at great length about tyres for ev's, apparently putting ice tyres on is not a good idea ( yes I know he would say that but he certainly knew his subject), in there waiting area there was a large Continental display showing the differences between eV and ice tyres, can't remember all the details but it came down to how a eV puts down its power.
BBD, having had recent experience of a eV I'm not convinced there restricted, well not in acceleration certainly, that said the Electric Berlingo I had for a few weeks stated in the handbook it was electronically limit to 110mph!
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Slightly off topic.
Electric cars are far more heavy and produce a lot more torque the conventional ICE cars.
Can’t tyres lasting anywhere near as long.
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Electric cars are far more heavy and produce a lot more torque the conventional ICE cars.
Actually they don't produce a lot more torque, it just feels like they do because it is all available from zero revs. Plenty of ICE have a higher peak torque figure than an equivalent EV. I know it isn't directly comparable, but as an example the Vauxhall Meriva 1.7CDTI we had in 2011 made 40NM more torque than the Berlingo e mentioned above.
As for the weight, they are heavier, but unless looking at smaller EV's vs smaller ICE cars, certainly not far heavier. The Berlingo e is around 17% heavier than our Meriva and only around 10% heavier than my 2010 Caddy 2.0 diesel van.
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Far more heavy? 340 kg that's just about two burly rugby players. It's not as much as you might imagine.
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One thing I have noticed as I walk the dog is that tyre roar on EVs is no different perhaps sounds worse because of the absence of the engine and exhaust note.
Edited by sammy1 on 13/06/2022 at 22:10
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I own two EVs. They emit a low groan whilst at pedestrian ish speed. At 30mph not even that. Nearly all just tyre noise. Personally I'd like external speakers and the sound of a V8 or a Merlin engine at full chat. Tesla probably already have that option
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Tyre companies are developing tyres specifically for EV’s - a more durable compound to handle sudden torque inputs, lower noise levels because you can’t mask tyre noise behind engine noise, etc. A non-EV tyre of the correct size and ratings on an EV will wear considerably more quickly than one made for use on an EV.
Shouldn't we just put the special EV tyres on all cars then? More traction, less noise sounds good to me.
More like just a way to fleece the motorist more of their cash. The 'specialist' EV tyres will cost more to develop and build, so that cost will have to be passed on.
I just wish they went back to the essentially sensible (much smaller) variations in tyre size and spec we had 15-25 years ago. Apart from about half a dozen common sizes (that are mainly fitted to cars like mine and many others over 10 years old), most are now quite expensive for what they are because there are so many variants in size.
Car and tyre manufacturers need to simplify the tyre specs/sizes needed to save on costs and to pass that on to the consumer, especially at the moment.
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Car and tyre manufacturers need to simplify the tyre specs/sizes needed to save on costs and to pass that on to the consumer, especially at the moment.
Whilst it would be nice for them to do so I don't see why they need to do it? They are there to sell tyres and make money - I can't see them doing that without prodding from the government.
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‘Slightly off topic.
Electric cars are far more heavy and produce a lot more torque the conventional ICE cars.
Can’t tyres lasting anywhere near as long.’
The data from tyre companies is saying that an EV fitted with the correct specification of tyres will make them last up to 30% further. That’s based on a driving style that doesn’t routinely make use of the instantaneous torque delivery - ie driven normally.
A Polestar 2 uses Michelins on 19” wheels and Continentals on 20’s - both from the manufacturers’ existing line up. But if you look closely at the sidewall you’ll see ‘POL’ moulded in - showing it’s a tyre specifically approved for EV use.
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‘Slightly off topic. Electric cars are far more heavy and produce a lot more torque the conventional ICE cars. Can’t tyres lasting anywhere near as long.’ The data from tyre companies is saying that an EV fitted with the correct specification of tyres will make them last up to 30% further. That’s based on a driving style that doesn’t routinely make use of the instantaneous torque delivery - ie driven normally. A Polestar 2 uses Michelins on 19” wheels and Continentals on 20’s - both from the manufacturers’ existing line up. But if you look closely at the sidewall you’ll see ‘POL’ moulded in - showing it’s a tyre specifically approved for EV use.
The "POL" simply indicates that the tyre is a specific version for Polestar - no different to specific versions for Porsche, etc over the last century.
In practice, few replacement tyres are bought with the exact original specification.
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It means they have a Polestar-specific layer of foam applied the inner surface of the tyre to dampen noise and vibration.
Plus an EV-specific compound to handle the very different driving characteristics.
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