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20" Inch Help?!: 20" all-season tire advice needed

mark23

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First off thank you everyone who has written tons of tire reviews and feedback. It's a little overwhelming but awesome. I need a little help. I'll be picking up a new R1S dual in the coming weeks, and as someone who has never really put much thought into tires, wheels, etc. I'm finding it all a little counter intuitive, and could really use some help from folks who aren't trying to sell me anything.

tl;dr: Bumps and bad roads cause physical pain, will new tires significantly improve quality of life?

My main reason for picking a R1S was that a few years ago my wife developed a health issue that makes riding in a car extremely painful and difficult. After a ton of research we found that the suspension configurability on the Rivian allows her to feel like there is enough disconnection and dampening that it's a much easier experience. >90% of our driving is low speed urban streets, many of these roads (Seattle) are hilly and bumpy.

We took a few demo drives on various tires and the OEM 20" All terrain tires felt better than the 22" sport tires and I figured that bigger sidewall would be better in our scenario. So we went that direction, but needless to say there isn't likely to be any off-roading in our future. I think there is an opportunity to improve quality of life with a tire change. Based on reading here and looking through all the tire threads, I see people really like the Michelin Defender LTX M/S2 and the Goodyear Wrangler Territory. I'm not really sure I understand the real world impact of the difference between the 275/60R20 and 275/65R20 sizes, though a 1/2" lower entry height wouldn't hurt.

My priorities would be:
1) Ride quality (soft and absorbing bumps)
2) Safety (rain and weather mostly, occasional snowy hills, but not heavy snow)
3) Efficiency - city driving mostly.
4) Quiet/noise

I'm open to any advice here, and would very much appreciate any real world observations on this that folks could provide. I'm also open to the idea that the difference here is so minor I should just not worry about it. Thank you!
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LL75

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I would go with those two tires you mentioned above in size 276/60/20 based on your ranking.
 

DayTripping

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I purposely switched from the 21” road tires to the Territory ATs and couldn’t be happier. They may not be the most efficient tire, but they seem to be pretty decent. So far love the tires. There is a long thread I started here about my decision to buy them and I’ve documented the good and the bad through the thousands of miles I’ve put on them. Let me know if you can’t find the thread.

The other tires I considered were the Michelins you are also considering. They will likely be more efficient but I wanted more contact patch than they offer. I knew going in that might cause a slight hit in efficiency but I wanted better emergency braking and handling.

Saving a few pennies on electricity of maybe losing a few miles per tank was worth the trade off to have better stopping distance in an emergency. If it is keeps me from having an accident, it will save me thousands more than the few bucks I save a year with better efficiency. That isn’t to say the efficiency is bad either. I brought the receipts to the thread.
 

VSG

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Tires are expensive. If you already have the OEM 20s, then you're not going to get any noticeable improvement in comfort by changing them out immediately. While an AS will give you better mileage and better performance on street vs an AT, reducing the sidewall is not going to make it more comfortable. I would save the $1500 and get a seat cushion or other device that might help. Save the tire swap for sometime in the future when you actually need new tires.
 

pickupman2022

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I put the Michelin Defender LTX M/S2 in 275/60R20 on about a week ago and love them so far. Very good ride quality. Softer/smoother than the genial grabbers I replaced.
 

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arbreg17

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I put the Michelin Defender LTX M/S2 in 275/60R20 on about a week ago and love them so far. Very good ride quality. Softer/smoother than the genial grabbers I replaced.
This is what I would recommend too. Couple threads on here about great efficiency numbers from them and ride improvement.
 
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mark23

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Thanks so much everyone. It's really helpful to get thoughtful opinions on something that's so hard to actually experience without making a big commitment.
 

DayTripping

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The one thing you can do with the Goodyears is find a 2025 model in stock at the Rivian store and drive them. Since it is an OEM tire, there is a chance one of their demo units will have them.

All tires are compromises. So just pick what are the most important attributes to you where that specific tire doesn't compromise as much, or not at all.

If mainly focused on city efficiency, I don't think you'll see a huge difference between them. I still find it amusing that people buy a 100k truck and worry about a difference in maybe a dollar or two, to recharge it. If my truck were at 0% and I filled it up totally, it might cost me $20.

Even if I get 20% better efficiency, which isn't likely if I change from the GY's to Michelins, that is about $4 savings if I were to drain the batteries every time. So if I went from 6.5 cents per mile (cpm) to even 5.2 cpm, it won't be material to me at the end of the year.

Assuming the efficiency delta was that big, which I highly doubt, if I drove 12k miles a year, the cost difference is $156. I just don't understand the hyperfixation on some people for efficiency. I am not opposed to better efficiency, but if I slow down 10%, it will likely make a bigger difference than that over the year. Better yet, just drive something other than an electric truck if you want better efficiency. My Tesla is more than twice as efficient as my Rivian is in everyday driving.

Heck even the pudgy, but easy to get in and out of Model X is significantly more efficient. If someone isn't a Tesla hater, that vehicle can make a lo
 

roketdog

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I love the Toyo Open Country AT 3 EV. I got the 275/65/20 this past Jan. I had to get new tires on my Burb so I put the pirellis on that and Toyos in my R1S. Ride is softer than Pirellis. My efficiency is 2.05 and growing up with warmer temperatures. The ride has been even better with the recent update that smoothed out bumps when turning.

If I didn’t go with the toyos I was leaning on those two tire choices. If efficiency is a priority then 275/60/20 is probably better size. If comfort, higher sidewall would be best to play it safe for wife.

Let us know what you decide. Enjoy the ride!
 

LL75

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I put the Michelin Defender LTX M/S2 in 275/60R20 on about a week ago and love them so far. Very good ride quality. Softer/smoother than the genial grabbers I replaced.
I had both and i can't tell any different in ride quality between the two. I love the general grabbers. Only thing I hate about it is only last 18K miles for me. I just replaced it with the defender.
 

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ksurfier

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I’d strongly recommend the Yokohama Geolandar CV 4S, there’s a separate thread.


Had them over 12 months and 17,500 miles (~40-50% usable tread remaining).

I immediately noticed how much more compliant they were than the 20” Pirelli’s.
I would stay away from any AT tire and also avoid high UTQG (harder tread) tires.

CV 4S is also 3PMSF, so you won’t need to worry about traction.
 

Mkreaden

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My favorite 3-season tires for EVs is the All-Weather Nokian WR G4. I have used them in snowstorms with 8" of snow (I live in Tahoe) and have driven to the desert in temps of 120F. Great ride, low rolling resistance (3% difference in range compared to my stock Tesla MX tires), performance tire.

I would be using these tires on my new Tri, but unfortunately the WR G4's do not come in 22" size. I had to opt for the Nokian nAT as my 3-season tire, which has me wishing that I switched to 20" wheels so that I could have used the WR G4's. The nAT's are a capable tire, but there is a lot of road noise and the ride is harsh.
 

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I just swapped out my 21s for Michelin Defender LTX M/S2 tires (275/60R20) at Costco. I was pleasantly surprised when they came with a 75,000-mile warranty instead of the 70,000 miles I was expecting. The Costco rep mentioned these are the new version of the Defender line.


I haven’t driven much on them yet, but the ride already feels noticeably better than with the 21s.


Also, when switching to 20" wheels, the truck gave me two tire size options:


  • Goodyear 275/60R20
  • Pirelli 275/65R20

I was surprised to see both options available, which makes me think we don’t need to worry about the odometer being off by 3%. I ended up setting up the new tires with the Goodyear 275/60R20 profile.
 

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Cooper AT3 PERIOD. AMAZING tire rides great, wear is phenomenal. 12K in and still look brand new.
 

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