Switched from 22" Darks to 20" EV1 R800 Wheels (bronze) + KO2 275/60 Tires

[DoubleTake]

The title says it all! I pulled the plug and finally got me a set of 20" with A/T Tires. I walked in from the garage and I don't have many miles at all. They look completely amazing on my Launch green R1T. There are a few things I wanted to mention that may help some of you out in the future.

1) Stock 22" Dark with 50psi came in at about 82lbs give or take 1lb.

2) R800 20"with 275/60 KO2 came in at about 91lbs give or take 1lb.

3) It appears if you order a Rim Tire package of the R800 in bronze, they will all be +35 Offset and, not the stock +48. I am happy as I wanted some of that wheel stick out the side ( more of an aggresive stance ). I did a full lock-out to both sides and experienced no rubbing issues on the standard AP setting. I will have to reach out to EV1 on the phone when I order a spare set to ensure they ship me a +35 and not a +48 offset R800 in Bronze.

4) I dove about 10 miles up to 55mph and the ride was smoother for sure but it was also louder than the stock 22" Pirellis (of course they are A/T Tires right ) I wouldn't say obnoxiously louder but you can 100% hear that its a tire noise and not wind at least up to 55mph. I will drive my normal comute tomorrow with up to 70mph and see how they do at that speed.

5) I decided on 52" PSI Cold tire pressure but may change it to 53" depending on how the chaulk test results come out.

6) @EV Sportline , Order on Tuesday night and had them delivered Monday morning (CA to NY). So thank you for the fast turn around!

Check out the photos

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[EV Sportline]

The title says it all! I pulled the plug and finally got me a set of 20" with A/T Tires. I walked in from the garage and I don't have many miles at all. They look completely amazing on my Launch green R1T. There are a few things I wanted to mention that may help some of you out in the future.

1) Stock 22" Dark with 50psi came in at about 82lbs give or take 1lb.

2) R800 20"with 275/60 KO2 came in at about 91lbs give or take 1lb.

3) It appears if you order a Rim Tire package of the R800 in bronze, they will all be +35 Offset and, not the stock +48. I am happy as I wanted some of that wheel stick out the side ( more of an aggresive stance ). I did a full lock-out to both sides and experienced no rubbing issues on the standard AP setting. I will have to reach out to EV1 on the phone when I order a spare set to ensure they ship me a +35 and not a +48 offset R800 in Bronze.

4) I dove about 10 miles up to 55mph and the ride was smoother for sure but it was also louder than the stock 22" Pirellis (of course they are A/T Tires right ) I wouldn't say obnoxiously louder but you can 100% hear that its a tire noise and not wind at least up to 55mph. I will drive my normal comute tomorrow with up to 70mph and see how they do at that speed.

5) I decided on 52" PSI Cold tire pressure but may change it to 53" depending on how the chaulk test results come out.

6) @EV Sportline , Order on Tuesday night and had them delivered Monday morning (CA to NY). So thank you for the fast turn around!

Check out the photos

Wow, looks amazing! Send me pics at [email protected]!

 

[shamoo]

Very cool! I was cheap and got some used KO2s on those Ram 1500 wheels but they are HEAVY!

See how your efficiency is after a while. At first, I didn't notice much but maybe it took a few drives for the Rivian to "feel" it. But from an average of 2.2-2.3 miles/kWh to barely 1.8 it definitely reduced range.

 

[WSea]

Did a chalk test over the weekend for LT KO3s. No noticeable difference between 53 and 65psi

 

[DoubleTake]

Very cool! I was cheap and got some used KO2s on those Ram 1500 wheels but they are HEAVY!

See how your efficiency is after a while. At first, I didn't notice much but maybe it took a few drives for the Rivian to "feel" it. But from an average of 2.2-2.3 miles/kWh to barely 1.8 it definitely reduced range.

I noticed in the winter my efficiency was shit anyways with the 22's so I honestly don't expect a huge drop. I was averaging 1.8 so hopefully it doesn't drop that much lower

 

[AbhorViolence]

Looks very nice.
I personally wouldn't want to do this due to reduced efficiency from the wheels offset (drag) and the more aggressive tires, as well as increased noise. Those are great tires though, had a set on my old Tacoma before. But with all the miles I'm driving lately I'm looking to go the other direction with some 275/60/20 road tires to see how much efficiency gain I can manage, when my stock AT are worn out (still decent tread left after 14k mi).

Be curious to see just how much of a hit these are to your efficiency.

 

[DoubleTake]

Looks very nice.
I personally wouldn't want to do this due to reduced efficiency from the wheels offset (drag) and the more aggressive tires, as well as increased noise. Those are great tires though, had a set on my old Tacoma before. But with all the miles I'm driving lately I'm looking to go the other direction with some 275/60/20 road tires to see how much efficiency gain I can manage, when my stock AT are worn out (still decent tread left after 14k mi).

Be curious to see just how much of a hit these are to your efficiency.

I completely understand. Honestly though the offset difference is so small i don’t think it’s even an inch. Can’t see that causing that much of a difference. Now the weight and rolling resistance is where I think I maybe screwed by. I barely drive far and charge at home so loosing some miles per charge won’t be to bad

 

[Cactusone]

Most of that weight increase looks to be wheel balance weights. BFGs standard ops. lol

 

[SDH]

Nice. Looks way better than the 22" IMO ... but I just like the off-road look. Stuff the efficiency.

KO2's are great tires. Got them on my Jeep.

 

[DoubleTake]

Nice. Looks way better than the 22" IMO ... but I just like the off-road look. Stuff the efficiency.

KO2's are great tires. Got them on my Jeep.

I have a set of KO2 in 35"s on my Jeep 4Xe I have had them on all my jeeps and trucks. Never have let me down.

So far for my normal community in 20f degree weather with a 52f degree battery temp, My efficiency went from like 1.84 to 1.68. Still too soon to tell if that's a realistic lost so time will tell. I will say though, ride comfort is notably improved.

 

[mike813]

I chalk tested my KO2s on stock 20s and found my sweet spot at 58 psi cold. Interested to see what OP comes up with. I now have 14k miles on my K02 and my Discount Tire guys say they're wearing evenly and looking great.

@EV Sportline is awesome. My R1S rock sliders arrive today - install will be a fun Saturday project for me.

 

[PDXRivian]

I went with the same wheels but with Nokian LT3s for winter. The offset piece is really interesting because I have feeling they stick out more than stock. This actually might be an advantage as I’m considering running chains. (See ice picture as to why I’m considering chains)

 

[DoubleTake]

Did a chalk test over the weekend for LT KO3s. No noticeable difference between 53 and 65psi

how are the KO3? I must say the KO2s are louder than I expected but must be because of no engine noise. I barely hear them on my jeep.

 

[WSea]

how are the KO3? I must say the KO2s are louder than I expected but must be because of no engine noise. I barely hear them on my jeep.

I also switched from 22s. There is that low tire drone which should be expected with this type of tire. Installed in September and I don't even think about/notice it anymore. Don't really hear at higher freeway speeds. Absolutely worth it for a more versatile vehicle. A dream in the snow!

 

[Purpleemperor]

The title says it all! I pulled the plug and finally got me a set of 20" with A/T Tires. I walked in from the garage and I don't have many miles at all. They look completely amazing on my Launch green R1T. There are a few things I wanted to mention that may help some of you out in the future.

1) Stock 22" Dark with 50psi came in at about 82lbs give or take 1lb.

2) R800 20"with 275/60 KO2 came in at about 91lbs give or take 1lb.

3) It appears if you order a Rim Tire package of the R800 in bronze, they will all be +35 Offset and, not the stock +48. I am happy as I wanted some of that wheel stick out the side ( more of an aggresive stance ). I did a full lock-out to both sides and experienced no rubbing issues on the standard AP setting. I will have to reach out to EV1 on the phone when I order a spare set to ensure they ship me a +35 and not a +48 offset R800 in Bronze.

4) I dove about 10 miles up to 55mph and the ride was smoother for sure but it was also louder than the stock 22" Pirellis (of course they are A/T Tires right ) I wouldn't say obnoxiously louder but you can 100% hear that its a tire noise and not wind at least up to 55mph. I will drive my normal comute tomorrow with up to 70mph and see how they do at that speed.

5) I decided on 52" PSI Cold tire pressure but may change it to 53" depending on how the chaulk test results come out.

6) @EV Sportline , Order on Tuesday night and had them delivered Monday morning (CA to NY). So thank you for the fast turn around!

Check out the photos

What did you do with the 22s? I’m looking for a set

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