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Random EV thoughts.....

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Comments

  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    Most do and all should. Especially when it’s a jeep as the crew cabs can use loading bays even though they have 5 seats.



  • Registered Users, Registered Users 2 Posts: 10,033 ✭✭✭✭CoBo55


    Regular occurrence here in Co. Wexford especially in Wexford town.



  • Registered Users, Registered Users 2 Posts: 775 ✭✭✭Mach Two


    Is regenerative braking the same as one pedal driving? I thought EV tyres wore faster because of putting too much weight on the accelerator when moving from a standstill.



  • Registered Users, Registered Users 2 Posts: 13,005 ✭✭✭✭the_amazing_raisin


    I didn't regen had much effect on tyres, I always thought it was down to the "low energy" tyres for EVs having less tread overall, so they wear out faster

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    More FUD. My last best of there’s lasted 40,034km. AWD 500bhp. Michelins.



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  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    This also. Seemly EV tyres (some of them) come with 6mm thread instead of 8mm.



  • Registered Users, Registered Users 2 Posts: 17,744 ✭✭✭✭AMKC
    Ms


    Live long and Prosper

    Peace and long life.



  • Registered Users, Registered Users 2 Posts: 9,732 ✭✭✭CMOTDibbler


    That's not confined to EVs. Lots of tyres coming out in 6 and 7mm treads.



  • Registered Users, Registered Users 2 Posts: 4,120 ✭✭✭wassie


    Oh please spare me your FUD labels simply because you dont agree with a something. You know full well this topic is constantly debated over the interwebs.

    My experience, based on 140K km and just changing over onto my 5th set of same tyres as you, is that my tyres wear significantly faster on this EV than other RWD vehicles I have owned across the years.

    I drive with one pedal nearly all the time and the Tesla is well known for its aggressive regen braking, meaning brakes are applied more frequently (i.e. whenever I lift my foot off the pedal). This also means more frequent acceleration after braking.

    Combined with more torque from an EV, I think its fair to assume on my RWD vehicle using regen, the rears experience a more wear than using the friction brakes using all 4 wheels, whilst the fronts will wear very little.To compensate I rotate every 10,000km, but still needing to swap all 4 every 35,000km.



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    Ohh spare me the dramatics too, Of course it’s mentioned across the internet as common FUD. Like for like, EV’s don’t use any more there’s than a similar ICE.

    Put your 300bhp RWD Tesla against a BMW M3 and it will be very similarly matched for tyre use.

    So yes, the common misperception that EV’s go through more tyres than ICE is FUD.

    My brothers 2022 MY LY is approaching 41000km with the factory tyres still on it.

    When you lift off the accelerator, the brakes are not applied. The regeneration is the electric motor slowing you down, there is no relationship with the brakes.

    35000 km from tyres on a RWD car with near 300bhp is good. I really don’t know what you expect to achieve over and beyond that so my theory of FUD stands.



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  • Registered Users, Registered Users 2 Posts: 4,120 ✭✭✭wassie


    I think I've given a fairly reasonable rationale as to why I think my tyres wear faster than I would expect.

    Whats yours to back up your "common misconception".



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    My rationale is driving EV’s since 2012. Proof is in the pudding, I suppose.

    Some people are harder on tyres than others it would seem, But EV’s in general do not under perform like for like against ICE.



  • Registered Users, Registered Users 2 Posts: 4,120 ✭✭✭wassie


    Ah so its your experience vs mine, but my view is FUD because it doesnt align with yours.



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    I never said your view was FUD. Infact, I never responded to you at all. I responded to the user mach two, but you jumped in being offended. No idea why tbh you got so offended there, So I think you might need to re-read the post order 👍

    I said the common misconception spread by EVHaters that there’s don’t last as long as ICE is FUD. And I stand by that based on my experience and the experience of people around me using EV’s.



  • Registered Users, Registered Users 2 Posts: 1,041 ✭✭✭SchrodingersCat


    Is it not well known that tires on EV’s tend to wear more quickly than those on ICE cars? This isn’t a EV hater thing. The increased wear is primarily due to the heavier weight of EVs and their higher torque. The weight puts more pressure on the tires, and the immediate torque can cause additional stress. To mitigate this, newer EV-specific tires are designed with stiffer compounds and reinforced structures to handle the extra load and reduce wear.

    Engineering Explained did a good video on this (even if it’s an ad for Hankooks new EV tyre)



  • Registered Users, Registered Users 2 Posts: 4,120 ✭✭✭wassie


    All good Gumbo and defo not offended.

    But whilst we are talking about regen braking out of curiosity, do you happen to know if Tesla uses any from of blended braking?



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    They use blended braking only if you are at 100% battery where as you wouldn’t normally have regen, so they do this so as to not change the behavior of the car to the user and it feels the same.

    I believe this can be turned on or off.

    From the net.
    To experience the same amount of deceleration whenever you release the accelerator pedal, regardless of the state of the Battery, you can choose to have the regular braking system automatically engage whenever regenerative braking is limited. Touch Controls > Pedals & Steering > Apply Brakes When Regenerative Braking is Limited.



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    Funny enough I replaced the OEM Michelins that went into the car in March 2020 (manufactured in September 2019) with the Hankook ION EV tyres.

    The originals down 40k and still had loads of life on them. Only reason I changed was because of tracking and the inside edges were worn, which is a common problem on the M3P due to the camber, and possibly weight etc

    So it will be interesting to see how the Hankook perform being a “newer EV Tyre.



  • Registered Users, Registered Users 2 Posts: 5,450 ✭✭✭Buddy Bubs


    Not by any means a tyre expert but coming up to 35k Kms on my cupra born it's going to need it's 3rd set of tyres in the next 5k Kms

    I definitely got better than that on my ICE cars which were Audi A6 and 5 series in recent history. They would be almost as heavy as the Born, Audi was fwd, BMW was rwd.

    But anyway, a few variables at play, obviously the brand of tyre itself and one thing I started thinking the other day.....the tyres on the born are only 215mm wide compared to 245s and 255s on the Ice cars I had, would a narrower tyre on a heavy car wear quicker than a wider tyre?

    The etron I have wears 255s I think, I'll check later, and they are wearing better than the born for some reason. At 15k Kms on the clock, they are not worn down much at all where the born were nearly ready for replacement. Both brands are the same, Bridgestone potenza



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    That certainly seems excessive. The AA stats say you should be getting about 20,000 miles from a set of tyres which is about 32,000km. That runs in line with the posts above.

    I just checked the 2017 PHEV in the garden there too, Goodyear Eagle F1 RSC 275 35 R20 on the 530e and there on that car since 2020 and has clocked up 35000km with no sign of wear at all. That’s also a RWD car but albeit with a lower 252bhp and they can’t be rotated as they are staggered.



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  • Registered Users, Registered Users 2 Posts: 1,041 ✭✭✭SchrodingersCat


    Out of interest, have you noticed a difference in noise from the two brands of tyres?



  • Moderators, Home & Garden Moderators Posts: 7,035 Mod ✭✭✭✭graememk


    The lower tread depth from 8mm to 6mm does play in a big factor in rolling resistance, Allows them to get a better economy rating on the tyre. Doesnt seem like much, but.

    Say you wear them down to 2mm, on a 6mm tyre that is 4mm of available wear, On a 8mm tyre there is 6mm of available wear. Thats 50% more wear available to on the 8mm tyre.

    I personally run all season tyres as I live on untreated roads and dont want a little shower of snow prevent me from getting home or leaving. (120k km roughly and its got its second set of all seasons in march, first set was nov 2020).



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    Michelins to Hankook. No noise difference to my ears. Now that’s not using a db meter but general day to day no difference. Handling very similar so far too.

    Both the above would be way above my experience with the Pirelli PZeros. I’d never buy them again.



  • Registered Users, Registered Users 2 Posts: 1,041 ✭✭✭SchrodingersCat


    would a narrower tyre on a heavy car wear quicker than a wider tyre?

    In general, yes. But manufacturers are trying to use different compounds to reduce this wear in EV’s. They make them narrower on EV’s in an attempt to reduce aerodynamic drag.



  • Registered Users, Registered Users 2 Posts: 5,450 ✭✭✭Buddy Bubs


    Im finished with the free replacement tyres on the Cupra now so when I'm talking to my tyre guy I'll be making sure plenty of thread depth. I might also get run flats, I hate not having a spare. I'm not too worried about a minimal effect on range.



  • Registered Users, Registered Users 2 Posts: 6,233 ✭✭✭creedp


    Would aagree On the P-Zeros. I normally drive with music pretty loud so it drowns out any tyre noise but yesterday I had a passenger who wanted to talk😁 so I turned it off and at 130kmh the tyre noise was really intrusive. Far louder that my diesel 7 seater which is on Nexens and the Leaf on GY efficient grips. Unfortunately I've a long way to go before they are replaced.



  • Moderators, Society & Culture Moderators Posts: 42,258 Mod ✭✭✭✭Gumbo


    Nexen are really good in my experience. I’ve had them on a G30 520d before. I’d have no problem fitting them to the EV.



  • Registered Users, Registered Users 2 Posts: 4,576 ✭✭✭eagerv


    My ex ID.3 with Goodyears were still good at 27k, but others with the Bridgestones reported a lot of wear. But I think they started with less thread depth.

    My Model 3 RWD is now at just 38k with a good bit of thread remaining, but will probably change the rears at about 40k or a bit more. I am pleasantly surprised tbh, but I do try and drive fairly smoothly, particularly with regen. Was behind a Model 3 recently and the brake lights were continuously on and off. The lights only come on with full or almost full lift off.

    Both our present and past Hyundai are also easy on the tyres. The missus also has about 38k on her present Ioniq 5, all the tyres still have loads of thread, but hers is the low powered version.



  • Registered Users, Registered Users 2 Posts: 10,033 ✭✭✭✭CoBo55


    I've 12K on my Born and the tyres are perfect front and rear I've never actually measured them but in no way do they look worn. I never use regen or B mode as it's called in the Born, I hate it I much prefer push and glide it gives a much smoother ride.



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  • Registered Users, Registered Users 2 Posts: 1,373 ✭✭✭MightyMunster


    Is there no one pedal driving on the Born? Press less to slow, press more to go faster. The smoothness is then dependent on the driver. Find it much smoother than the constant brake/accelerate in an ICE.



This discussion has been closed.
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