Rivian Wheels

[BoltEVowner]

Would really be great if this Reddit poster could report on their experience with these 20" AS tires, and exactly which tire it is? Hopefully better range than the Pirelli OEM 20"AT tire.

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[SRTConvert]

One thing to consider when looking at cost is the "free" set of 21" wheels / tires you give up when you choose an optional package. Pre 3/1 pricing, the 20" AT's cost $1800. The true cost is $1800 plus the value of the 21" wheels / tires. For my Tesla Model S, in 20/20 hindsight, I would have been better off going with the OEM 19" wheels with all seasons and picking up aftermarket 21" with three season tires, instead of paying an extra $4500 for the OEM 21" Arachnid wheels.

I'll still go with the 20" AT and probably replace them with an all season when they wear out. If I am doing more off-roading, I'd consider a set of aftermarket 20" or 22" wheels, and swap between AT on one set of wheels and All Seasons / Sport tires on the other set.

 

[BoltEVowner]

The larger size is certainly an option, and were this an ICE vehicle, I'd consider it. For the 1/2" of ground clearance I'm losing, I'd prefer the smaller, lighter tire for an EV. Also, it's not only the weight of the tire, but where that weight is. Even if a 33" tire and 34" tire weighed the same thing, that weight being on the outermost edge of the larger diameter circle requires more effort.

5 years ago, I used to be able to find larger diameter 17"-20" mud tires that were a lighter load range D, and even C. Since then, most manufacturers have moved to these heavy E and F range tires that weigh a lot more. Really hurts mpg on lighter vehicles like Jeeps and Toyota SUVs. Even the Rivian would be more than fine on a D range tire. Not really sure why manufacturers have gotten rid of the lighter weight tires. Not everybody with larger tires is driving an F-350 needing that kind of weight capacity.

One other thing to look at as people shop aftermarket tires is the speed rating. Many are only rated to 99mph or 112mph. Might make a difference on a truck so fast...

If you were to use the 275/60R20, a 33"diameter tire, will you be able to set in the configuration that you are using the 21" tires, since these 20" tires have the same diameter as the 21" road tires...and hence, no change to the speedometer? Not sure if there is a setting on the vehicle to tell it which tires you are using, but guessing there is.

 

[9527]

Never liked the flower look on the 21”s.

Was also debating between the 20” AT and 22” sport but I’ve always been leaning towards the sports like 80% vs 20% for the AT. The only reason I’d go with the 20” is that the tires are snow rated. Now I’m almost certain I’d go with the 22”. I’ve always like its looks better than the AT. Also more tire choices. I don’t like the range hit and don’t want to put all seasons in the 20”.

 

[AllInev]

As a non-LE, I like the free/included part of the 21" wheels and the 10%-15% efficiency improvement.

I'm assuming I'll keep this truck for at least 160,000 miles, so the 21"s should get me an additional 16,000-24,000 miles of range over the 20's. Given my cost of electricity is close to $.30/KWh, that's $2,400 to $3,600 of savings at the R1T's average 2mi/KWh.

I'll either get over the "flower" thing or take some of than efficiency savings and powder-coat the damn wheels. ?

 

[no4bit]

One thing to consider when looking at cost is the "free" set of 21" wheels / tires you give up when you choose an optional package. Pre 3/1 pricing, the 20" AT's cost $1800. The true cost is $1800 plus the value of the 21" wheels / tires. For my Tesla Model S, in 20/20 hindsight, I would have been better off going with the OEM 19" wheels with all seasons and picking up aftermarket 21" with three season tires, instead of paying an extra $4500 for the OEM 21" Arachnid wheels.

I'll still go with the 20" AT and probably replace them with an all season when they wear out. If I am doing more off-roading, I'd consider a set of aftermarket 20" or 22" wheels, and swap between AT on one set of wheels and All Seasons / Sport tires on the other set.

I thought about this, but felt that the forged wheels were worth it as I haven't been able to find a set of forged wheels for cheaper than $1,800, but I may be looking in the wrong place.

 

[Rousie13]

I keep bouncing back and forth between the 20” “staple” wheels and the 22” wheels. I have the same brand tires on our Volvo Recharges as the 22” Rivian wheel has and have had no concerns during winter with them. We live in central Ohio, so not a ton of snow.

 

[AllInev]

Blacked-out 21” wheels. Totally ok with me.

 

[SASSquatch]

Consumer reports has rated the Pirelli P4 Four Seasons Plus tire to have one of the longest tested treadwear at 100K.

The Pirelli P4 Four Seasons Plus has a treadwear rating of 760. Given that the treadwear rating is developed by the manufacturer using reference tires from the manufacturer, we can do some extrapolation here.

For the 500 treadwear rated 22's: = ~65K (500/760 x 100,000)
For the 600 treadwear rated 21's: = ~79K (600/760 x 100,000)
For the 640 treadwear rated 20's: = ~84K (640/760 x 100,000)

Now, all three tires here have different load ratings:

P4 4 Season 17: 1709
Pirelli 21/20: 2760
Pirelli 22: 2679

And that may also impact the treadwear even if, in theory, the tire should be constructed in a way that it should account for that (stronger sidewall). Added weight, may reduce overall treadwear.

Additional speed (the R1T is likely to burn tread at a higher rate given the acceleration) will also likely impact treadwear.

So, for the sake of argument, and to make the math easier, let's assume a 10% penalty for each (weight and acceleration).

That leads to the following predicted real-world tread life:

For the 500 treadwear rated 22's: ~65K (500/760 x 100,000) - 20% = ~53K
For the 600 treadwear rated 21's: ~79K (600/760 x 100,000) - 20% = ~63K
For the 640 treadwear rated 20's: ~84K (640/760 x 100,000) -20% = ~67K

For those averaging 12K miles per year, that would mean replacement of all 4 tires at a rate of:

22's = ~4.4 years
21's = ~5.25 years
20's = ~7 years

Somebody call out any bad math. Somebody who loves math. You know who you are!

 

[SANZC02]

Consumer reports has rated the Pirelli P4 Four Seasons Plus tire to have one of the longest tested treadwear at 100K.

The Pirelli P4 Four Seasons Plus has a treadwear rating of 760. Given that the treadwear rating is developed by the manufacturer using reference tires from the manufacturer, we can do some extrapolation here.

For the 500 treadwear rated 22's: = ~65K (500/760 x 100,000)
For the 600 treadwear rated 21's: = ~79K (600/760 x 100,000)
For the 640 treadwear rated 20's: = ~84K (640/760 x 100,000)

Now, all three tires here have different load ratings:

P4 4 Season 17: 1709
Pirelli 21/20: 2760
Pirelli 22: 2679

And that may also impact the treadwear even if, in theory, the tire should be constructed in a way that it should account for that (stronger sidewall). Added weight, may reduce overall treadwear.

Additional speed (the R1T is likely to burn tread at a higher rate given the acceleration) will also likely impact treadwear.

So, for the sake of argument, and to make the math easier, let's assume a 10% penalty for each (weight and acceleration).

That leads to the following predicted real-world tread life:

For the 500 treadwear rated 22's: ~65K (500/760 x 100,000) - 20% = ~53K
For the 600 treadwear rated 21's: ~79K (600/760 x 100,000) - 20% = ~63K
For the 640 treadwear rated 20's: ~84K (640/760 x 100,000) -20% = ~67K

For those averaging 12K miles per year, that would mean replacement of all 4 tires at a rate of:

22's = ~4.4 years
21's = ~5.25 years
20's = ~7 years

Somebody call out any bad math. Somebody who loves math. You know who you are!

I probably have less control over my left foot than I should but I get less than 30k from the 60k tires on my Model S. I’m guessing the Rivian will be less than 25k on the 22s.

 

[Speedrye]

If you were to use the 275/60R20, a 33"diameter tire, will you be able to set in the configuration that you are using the 21" tires, since these 20" tires have the same diameter as the 21" road tires...and hence, no change to the speedometer? Not sure if there is a setting on the vehicle to tell it which tires you are using, but guessing there is.

That option isn't present yet, but I assume it will come at some point. Many people run dedicated snow tires in a slightly different diameter than stock, so I can't imagine there wouldn't be a user-input for something like this unless the vehicle automatically adjusts based on wheel revolutions compared to GPS, but I doubt that'll be the case.

I'm used to needing new tires every 10k miles. I wouldn't know what to do with myself if the stock tires lasted 20k-30k.

 

[BoltEVowner]

That option isn't present yet, but I assume it will come at some point. Many people run dedicated snow tires in a slightly different diameter than stock, so I can't imagine there wouldn't be a user-input for something like this unless the vehicle automatically adjusts based on wheel revolutions compared to GPS, but I doubt that'll be the case.

I'm used to needing new tires every 10k miles. I wouldn't know what to do with myself if the stock tires lasted 20k-30k.

Well, then question for CS/Guides. Assume you configure 20"AT wheels, but also ask for an extra set of 21" road tires. If both of these wheel/tire combinations have exactly the same circumference, then revolutions per mile should be close to identical. If this is NOT the case, then Rivian must have to do something on their end during production to program the vehicle for the tires that will be running. This is an important question, and I do not recall seeing an answer from Rivian.

 

[crashmtb]

Well, then question for CS/Guides. Assume you configure 20"AT wheels, but also ask for an extra set of 21" road tires. If both of these wheel/tire combinations have exactly the same circumference, then revolutions per mile should be close to identical. If this is NOT the case, then Rivian must have to do something on their end during production to program the vehicle for the tires that will be running. This is an important question, and I do not recall seeing an answer from Rivian.

The AT tires are an inch larger in diameter compared to 22” or 21” options.

 

[staples]

I probably have less control over my left foot than I should but I get less than 30k from the 60k tires on my Model S. I’m guessing the Rivian will be less than 25k on the 22s.

You drive with your left foot?
I guess with one pedal driving that becomes easier.

 

[SANZC02]

You drive with your left foot?
I guess with one pedal driving that becomes easier.

Damn, no wonder it does not listen….?

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