The original tire size was 235/65 R18 which is perfectly suitable for a minivan.
Replacement tires
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200 Posts
High profile narrow tires are good for battery mileage too
But they're not too good for driving enjoyment. My car had the 18's when I test drove it, and to get the sale the dealer gave me the 20" wheels and tires off another I-Pace on the lot.
Before:
After:
The other I-Pace didn't have leather so it was a no-go. If I wanted fake leather I would have just kept my Mach-E reservation. Side rant: Why does almost every manufacturer assume that if you want an EV you also want a vegan interior?
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I just went through replacing my Goodyears after 29,000 miles (2019 HSE). There are very few options available if you want to keep the exact same size. At first, I found some Michelin Cross Countrys at Costco for a very good price, but when I went to have them installed, Costco refused because the weight rating (or whatever it is called) wasn't high enough. Ended up with General Altimax (made by Continental). So far, I am very happy with them--they seem a bit quieter and more responsive than the OEM Goodyears.
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As much as it amazes me every time when a vendor thinks he's smarter than you just by following users manual, this time they are rather right. Especially if you consider dynamic loads due to enormous acceleration.
Tirerack would have many options, including multiple performance tires. Altimax is rather touring one, which formally is a step down from Eagle Sport. But if it works for you -
Anyone changing there tire size have issues with their dealer? When I had the Nokian Hakkapeliitta R3's put on at the start of winter had the dealer toss the Goodyear Eagles as they were done. In prepping for spring I started looking if there were any other options out there for the 245/50R20, still nothing really besides the Goodyear Eagles and thought I would try the Continental DWS06Plus in the 255/50ZR20. They're only like 1% difference in height but actually match the OEM diameter for the 22inchers which I believe the speedometer is based on. Anyway, the dealer says they can't install any other size apart from what shipped with the car.
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I would never consider buying tires at an automotive dealer. Perhaps the market in the US is different, but here I expect to pay about half at a tire specialist. And not be stuck with nonsense like "no other size than what was specified".
I installed 255/50R20 Pirelli Scorpion Zero AS, could not be happier. Paid €240 per corner. Grippy, quiet, very low rolling resistance. Zero issue with fitment, config or anything. Only difference is that the speedo is now more accurate and the odo is underreporting about 3% instead of 1%.
The I-Pace is the first time I've ever purchased tires from a dealer for any of my cars. When buying the Nokian's they were $50-$100 cheaper per tire than any of the other tire shops around. Even beat online prices!
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!.
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😆
You can go very far with such philosophy, mate.
Not even saying that car manufacturers often push you any sort of crap they can get for a good deal. I think our Eagle Sports are pretty good example.
Thanks for your opinion though
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399 Posts
I've seen it go both ways. For the old Honda Insight, there was no reason to drive anything but the Bridgestones that were specifically designed for the car if you wanted to max your MPG (and why else drive an Insight). For less expensive mass production cars, you can generally do better than whatever the manufacturer slapped on there.
I'm not married to the Eagles, but many alternatives don't meet the weight rating. The Eagles don't excel at anything ... at best they are 'meh' ... but they have held up well given the car's weight and the amount of torque that the dual motors push out.
Tire manufacturers have started designing more dedicated EV tires. I'm sure we'll have more and better alternatives as time passes. Other than the Conti's, I don't know that there is currently anything out there that I'd go with in the 20" size over the Eagles.
I'm not married to the Eagles, but many alternatives don't meet the weight rating. The Eagles don't excel at anything ... at best they are 'meh' ... but they have held up well given the car's weight and the amount of torque that the dual motors push out.
Tire manufacturers have started designing more dedicated EV tires. I'm sure we'll have more and better alternatives as time passes. Other than the Conti's, I don't know that there is currently anything out there that I'd go with in the 20" size over the Eagles.
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245/50R20 105V XL
245/50R20 105V XL
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I guess you're right actually.
But that's another reason to go wider - 255 already has 42 XL tires, vs 6 in 245 width.
those are out of consideration
Seems it's all marketing, to sell same products with additional markup.
Insight is bad example because it's plain MPG-oriented, so yes, you can optimize a tire toward efficiency while giving up everything else. But even then, why wouldn't someone put it on another ICE car if he's interested in best MPG ? He probably would.
So in general, any parameter you could possibly improve, will be beneficial for ICE cars as well, so no EV exclusivity here. All the same requirements (except maybe XL rating), mainly based on driving style and personal preferences.
I get your point when it comes to tire pressure. On the other hand I think its been pretty well determined that Jaguar used the 22" wheels as the default size on the I-Pace, with tires being 255/40R22. With the logic that the manufacturers know more, they should want to keep the overall dimensions, diameter being the most important, the same moving to smaller wheel sizes that they offer. On the 20" wheels they equip with 245/50R20, which is a 1.3% reduction in diameter and a 4% reduction in width. These measurements give 672revs/mi on the 22" setup vs 681revs/mi on the 20". If they had equipped 255/50R20 instead the diameter and the width would be identical and both would be at 672revs/mi. On their 18" wheels they equip 235/65R18, which although they are narrower by 7% they have the exact same diameter of the 22" setup, which maintains the same 672revs/mi.
I've seen this play out with my stock 20" wheels setup when going past radar signs. At slower speeds it will fluctuate between matching what my speedometer says and 1mph slower, since they don't do increments between. When I go past one at higher speeds it will be consistently fluctuating between 1-2mph slower than what the car is reporting.
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399 Posts
I don't know about that. The sound deadening would be interesting if it doesn't add weight. I'm not sure how you can both have LRR and design for acceleration, but I assume that we'll see some testing when these tires are more widely available. Unfortunately, neither Michelin nor Goodyear mention handling much in their press releases for these dedicated EV tires.
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. 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 wasn't really disagreeing with your original point. The Eagles are not great tires, merely adequate, and I don't think they were specifically designed for the I Pace. If I was in the market today for new tires I'd probably go with the Contis. But I think this last quote may oversimplify things. EVs do present some new challenges. 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. How many ICE's have the combination of weight and torque of an EV?
In any event, it's all good. I'm going to hold off for a bit on replacing the rubber on my I Pace and I look forward to reading the reviews from those of you trying out new and different shoes on your kitty.
🥂
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Which is why I said the rolling diameter is the key calculation to keep in mind: A wheel setup with 235/65/R18 has the same rolling diameter as a 255/60/R18. If you opt for a wider tire, you have to compensate accordingly in the sidewall percentage to maintain the same rolling diameter. It makes no difference to the vehicle's telemetry if the wheel is 22" or 18" as long as the difference in the rolling diameter between each setup is 3% or less.
As far as brand of tire is concerned, I am hesitant to accept that because the car is delivered on some trim levels with Goodyear tires that these are somehow 'recommended'. They are fine tires. Some people don't care about their tires and don't have the time to consider other options or even shop around. My house came with light fixtures the builder supplied.... ya they worked and they were fine because I could see at night, but they were cheap and basic and not that well made. I don't have to upgrade the lights around my house to make them look prettier or cooler or I don't have to spend money on stuff that is better made or quality LED light bulbs. Some people don't care, some people cant be bothered... it goes on and on. I think its the same principle here. There are options out there including specialized options and if you want them you can get them!
Someone else said 265/40/R22 is the "sweet spot," and I agree because you get a nice wide tire and the wheel diameter is within the factory spec.
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705 Posts
I am not yet on the market to look for a new set of tires, I only have 40.000km on the odo with 2 set of tires : one for winter and one for 3 other seasons. I am in lve with my winter Nokian Hakka R3, and I know they have release the new Nokian One as a 4 season tires with the same tech (Aramid (Kevlar)-reinforced sidewall that’s designed to resist damage from poor road surfaces and potholes), and provide a free replacement tire under a Pothole Protection warranty, and a 80,000-mile (130,000km) mileage guarantee.
Any comment on those ?
I may give a try next time. A friend of mine has one set, and very happy with them, but not on an iPace.
Any comment on those ?
I may give a try next time. A friend of mine has one set, and very happy with them, but not on an iPace.
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