Jaguar I-Pace EV400 Forum banner
61 - 80 of 84 Posts

Registered
Joined
2,006 Posts
It amazes me that so many drivers think they can somehow decide on a better tire size than the car manufacturer. So many calculations are involved in determining the optimal tire size and tread pattern yet someone with no tire design expertise or it seems even basic knowledge of physics decides to go with a tire size that frankly under certain road conditions will endanger themselves and others. In many countries if an altered tire size is deemed to be a contributing factor to an accident the penalties for said driver can be severe. By all means play around with any aspect of your car, but unless you design tires for a living then be an adult and leave tire sizing to people who know what they are doing!.
A slight difference in rolling diameter doesn't matter. Car makers make their choices of tires for many reasons. I make my choices for similar but not identical reasons. I may want more grip or a softer ride at the expense of efficiency and price. Also, OEM tires are ripoffs.
 

Premium Member
Joined
200 Posts
Discussion Starter · #62 ·
I'm not sure how you can both have LRR and design for acceleration.
Exactly. Seems, you can't, otherwise they already would be on the market.
I used the Insight as an example because I have lots of personal experience with it. The Insight Bridgestones got pretty bad reviews if you put them on anything other than an Insight going by Tirerack. Like other true VTEC Hondas, the Insight had very little torque off the line and built up a bit as the cam got more aggressive. The extreme LRR Bridgestones resulted in lots or FWD tire spin on other cars but was matched well to the Insight's gradual torque curve.
...
Obsessing over range in an EV translates to perhaps .5 MPG on an ICE? Recent inflation aside, gas is pretty cheap in the US and I don't think that current tire designs focus on efficiency as much.
I had similar LRR Bridgestones on CPO Venza, and gas mileage was ~15% better than on all-season Yokohamas which replaced them. All around, Bridgestone would be fine summer option for mild driving.
Tirerack has MPG rating as one of 4 main tests, so perhaps some do care about it.
And BTW, MPG as unit is deceiving, because 0.5 difference on the top of 15 MPG total, is only ~3% which I agree is pretty much nothing. But same exact losses will result in 3 MPG on the top of 40 MPG - already ~7.5%, and it comes essentially for free if you're already driving carefully.
FWIW, I have no reason to believe the Eagles were purposely designed to maximize either the performance or efficiency of the I Pace. As I said, at best they are 'meh' other than wearing well.
I may be wrong, but it's probably just regular Eagle Sports with higher load rating. And with base model, Goodyear tried sitting on three chairs - traction, efficiency and longevity, and ended up missing all of them. So more or less OK option for the people who aren't sure what they want, but next replacement you just pick whatever fits your driving needs.

So yes, Contis look like the best high performance option so far.
(Unless you can snatch P Zeros or Pilot Sports for reeeeal cheap 馃榿)
 

Premium Member
Joined
200 Posts
Discussion Starter · #65 ·
In case of turnover, will need more tires to burn on barricades. I'm supporting.

But seriously, making regular people's lives miserable only helps Putin to consolidate the nation against western world.

And I suggest we stop with politics right here.
 

Registered
Joined
2,006 Posts
In case of turnover, will need more tires to burn on barricades. I'm supporting.

But seriously, making regular people's lives miserable only helps Putin to consolidate the nation against western world.

And I suggest we stop with politics right here.
Improving the economy of China and Russia did not stop aggression. History disagrees with your assertion. Closer economic ties actually encouraged Putin to attack, as he felt the EU would do nothing. Crippling the Russian economy cripples their military power. The mass murder in Syria was already performed by regular taxpaying people from Russia and their conscripted sons.

If you don't want to talk politics, that's fine. Don't. However, to say we should stop politics but get try to get the last word in? Party foul.
 

Registered
2019 FE Photon Red
Joined
1,162 Posts
Improving the economy of China and Russia did not stop aggression. History disagrees with your assertion. Closer economic ties actually encouraged Putin to attack, as he felt the EU would do nothing. Crippling the Russian economy cripples their military power. The mass murder in Syria was already performed by regular taxpaying people from Russia and their conscripted sons.

If you don't want to talk politics, that's fine. Don't. However, to say we should stop politics but get try to get the last word in? Party foul.
Please take a trip back in history a little further. Crippling the German economy after WWI lead to the rise of Hilter and the Nazis.
Cooperation, tolerance of opposing viewpoints and less nationalism is the answer. We are not competing with China - there is no gold medal for having the biggest economy or the highest standard of living if that puts others at a disadvantage and encourages aggression and defensiveness. Let's all play fair and be respectful. Any other argument is based on self centered beliefs, greed and intolerance.
 

Registered
Joined
69 Posts
Agree, let's stay on topic please.
 
  • Like
Reactions: jordanschlick

Registered
2019 FE Photon Red
Joined
1,162 Posts
I've requested administration to remove #64 through the end right away. The result you see.
Dropping this thread.
Thanks to everyone who contributed.
I do not expect you to see this comment, but I will post anyway.

I hate to ask, but will anyway. Were you offended by any of the comments?

Not acknowledging that other people have diverse opinions is the biggest issue in the US right now. #64 was a fair personal statement regarding tire options. Everything else that followed was only an extension of those thoughts. Censorship of opinions is flat out wrong under any situation.
I accept the polite REQUEST to keep on topic, but resent being censored. It is your own personal choice to not read other's comments, but restricting other's from seeing them is wrong.

Administration: Thank you. Now back to tire options.
 

Registered
Joined
17 Posts
F*** "diverse" opinions that justify war, I'll never tolerate them. Actually yes, #64 was a fair statement, and I think it's great one. I don't need a history lesson, I need this senseless war to be DONE and it's obvious who has started it.
 

Registered
Joined
18 Posts
Hello!

Don't be fooled, 255/50/R20 is a relatively common size for SUVs, light trucks or crossovers.

I would consult with your local specialist tire/rim shop and see what your local supplier can get. There are many options in this size that will fit your car at many price points. I live in Canada, where we supposedly have a narrower market and even here there is a lot to choose from. It only takes a few days to order in a set that you want.

I am not sure what you mean by proven brands but you can do much better than Goodyear Eagles. I would also recommend against anything Pirelli. I've used both Scorpion Zero and Verdes and they are crap from my experience.

Consider Touring, Performance or Extreme tires as a start based on your driving style, where you live and the weather conditions. Other brands like Bridgestone, Michelin, General, Cooper as well as Falken, Toyo, Yokohama, Nitto, Kumho etc make tires in these various 'trim levels' that will fit. ie. Michelin has the Premiere LTX or the Latitude lines.

Balance all of this against your budget and then proceed to BUY THE BEST TIRE YOU CAN AFFORD.
I have the Eagles and with only 10k miles the front 2 tires the tread is crumbling. Of course Goodyear won't accept that the tires are defective.
 

Registered
Joined
399 Posts
Others have reported this "chunking" issue with the GY Eagles.

Goodyear's milage warranty doesn't apply to OEM tires, but they will honor manufacturing defects. I'm not sure how much "chunking" is needed before you get new tires from GY, but I think some have reported success with the warranty. I ended up getting 40K miles out of the Goodyears with some (but not excessive) chunking. I decided to ride it out and get the something different. I just put a set of Contis on FWIW.
 

Registered
Joined
18 Posts
Others have reported this "chunking" issue with the GY Eagles.

Goodyear's milage warranty doesn't apply to OEM tires, but they will honor manufacturing defects. I'm not sure how much "chunking" is needed before you get new tires from GY, but I think some have reported success with the warranty. I ended up getting 40K miles out of the Goodyears with some (but not excessive) chunking. I decided to ride it out and get the something different. I just put a set of Contis on FWIW.
I spoke to Goodyear warranty and they provided a claim number and a local tire depot to go to. I called to set up an appointment and when explaining the scenario the guy went off on me raising his voice stating no warranty on OEM tires and contact Jaguar but don't expect them to do anything. OK, I said, however I have 2 shit tires made by Goodyear that are defective. The other 2 are fine so don't state tire rot to me. Ended conversation and will go back to Goodyear warranty
 

Registered
Joined
142 Posts
I have the Eagles and with only 10k miles the front 2 tires the tread is crumbling. Of course Goodyear won't accept that the tires are defective.
I'm in the same boat, 15K on the tires and the front two look nasty. I didn't notice the crumbling until today. I'm assuming it is going to get worse quickly.
 

Attachments

Registered
2020 S
Joined
167 Posts
I spoke to Goodyear warranty and they provided a claim number and a local tire depot to go to. I called to set up an appointment and when explaining the scenario the guy went off on me raising his voice stating no warranty on OEM tires and contact Jaguar but don't expect them to do anything. OK, I said, however I have 2 shit tires made by Goodyear that are defective. The other 2 are fine so don't state tire rot to me. Ended conversation and will go back to Goodyear warranty
The problem with going thru Goodyear warranty for their crappy tires is that the best you can hope for is more crappy tires. Even if you win, you lose.
 

Registered
Joined
142 Posts
I just got off the phone with my Jaguar Service Advisor and he warned me against getting an off size tire if the car was under warranty. He said that if there is a suspension type of issue, Jaguar requires a picture of the tires, and if they are not the correct size, the warrenty claim will be denied. He also confirmed that Jaguar knows of the issues with the tires, and he has seen lots of issues with them on the Land Rovers. He recommended starting the warranty process with Goodyear and then once it's started, bring the car in for inspection. The downside is that you need to replace crap with crap!!!
 

Registered
2020 S
Joined
167 Posts
I just got off the phone with my Jaguar Service Advisor and he warned me against getting an off size tire if the car was under warranty. He said that if there is a suspension type of issue, Jaguar requires a picture of the tires, and if they are not the correct size, the warrenty claim will be denied.
I think JLR is looking out for the dude rolling on 26s, not a 255/50R20 tire which has the same outer dimensions of the 255/40R22 tires offered on the I-Pace. My understanding is that in US the manufacturer has to be able to prove the change contributed to the failure. That being said... I'm an engineer, not a lawyer. As an aside, I just joined the 255/50R20 club this week.
 
61 - 80 of 84 Posts
Top