20” All-Terrain or 22” Sport wheel upgrade included - Which is better 20 or 22

[DuckTruck]

great
I'll be pestering you seasoned truckers from time to time
My first car had 7:75 14's and second one had wide oval 14's and an inflatable spare
since then all vans has something like 235/75 16" LT
forgot tom mention that besides smooth ride and low friction we'd like a safe rain tire

Whatever options you might explore, make certain their Load Rating matches or exceeds that of Rivian's requirements. These puppies are going to be a bit on the heavy side, and the acceleration capabilities will also necessitate tough tires. If a variant also offers the "EV" rating, that would be desirable, as well.

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[bike123.com]

Whatever options you might explore, make certain their Load Rating matches or exceeds that of Rivian's requirements. These puppies are going to be a bit on the heavy side, and the acceleration capabilities will also necessitate tough tires. If a variant also offers the "EV" rating, that would be desirable, as well.

this is very helpful. Of course we don't 'plan' to accelerate quickly. It wastes fuel.....never mind,
Well. maybe an emergency lane change.... or making the yellow light.....

 

[DuckTruck]

this is very helpful. Of course we don't 'plan' to accelerate quickly. It wastes fuel.....never mind,
Well. maybe an emergency lane change.... or making the yellow light.....

Or the "But it was barely red!" one...? > ?>?> ? > ?‍ > ?

 

[SANZC02]

this is very helpful. Of course we don't 'plan' to accelerate quickly. It wastes fuel.....never mind,
Well. maybe an emergency lane change.... or making the yellow light.....

Or just for the sheer fun of it...

 

[thrill]

we also like the idea of the 20 - more tire less wheel - the 21 is interesting but fewer tire choices looming.
since we are only mildly off roading anyone know if we can get the 20 with a quieter higher range tire?
if not anyone know the likelihood of selling the original tires as 'take offs' so we don't eat the whole cost of the road tires
?

I plan to just use up the first set of 20" ATs and see how they do (mostly) on the road. Eyeballing that Pirelli tread pattern I think it'll be just fine on the road without any annoying whine.

 

[Trandall]

If your feeling real adventurous you can get the super efficient wheels GM is planning on using for the new Hummer EV seen here being tested by their chief technology officer:

 

[monzarottie]

I'm planning to get 21" wheels for my R1S to maximize range but want to get a second set of wheels to mount snow tires on. I'm thinking 20". I assume I can mount P275/55R20 snow tires on them. Wondering if that'll look weird. Thoughts?

 

[Gshenderson]

I'm planning to get 21" wheels for my R1S to maximize range but want to get a second set of wheels to mount snow tires on. I'm thinking 20". I assume I can mount P275/55R20 snow tires on them. Wondering if that'll look weird. Thoughts?

I don’t think it will look weird. It’ll just potentially mess up your speedometer and make it less accurate. There’s differences in tire circumference between the 20” and the other factory sizes, so I’m assuming there will be some kind of setting in the software to adjust for that. Just not sure whether it will be limited to selecting the available OEM options or will allow you to enter any tire size you want.

 

[bike123.com]

I don’t think it will look weird. It’ll just potentially mess up your speedometer and make it less accurate. There’s differences in tire circumference between the 20” and the other factory sizes, so I’m assuming there will be some kind of setting in the software to adjust for that. Just not sure whether it will be limited to selecting the available OEM options or will allow you to enter any tire size you want.

Wasn’t the deal that when rims went larger tire tire profile went down?
In other words.... OD is same.
So our 20’s will have higher height of tire.
We’d do 21 but word on the street is the 21 is a proprietary size

 

[Reed]

On the subject of snow tires, I recently asked which tires were used in the winter testing video that came out a while back.

I thought for sure the response would be that they used the 20" AT tires, the only ones carrying the snowflake/mountain symbol. Apparently that wasn't the case. They were using the standard 21" tires.

They appeared to be in good control of the vehicles, suggesting perhaps that the computer programing and four motors provide a real boost to winter handling.

Hopefully, some of the launch edition buyers will take their vehicles out and test them in the snow. And, of course, post their results.

Right now, I'm sitting with the 20" AT's. But, if the range hit from these tires is big and the 21" tires handle decently in the snow, I might consider switching.

 

[Mjhirsch78]

On the subject of snow tires, I recently asked which tires were used in the winter testing video that came out a while back.

I thought for sure the response would be that they used the 20" AT tires, the only ones carrying the snowflake/mountain symbol. Apparently that wasn't the case. They were using the standard 21" tires.

They appeared to be in good control of the vehicles, suggesting perhaps that the computer programing and four motors provide a real boost to winter handling.

Hopefully, some of the launch edition buyers will take their vehicles out and test them in the snow. And, of course, post their results.

Right now, I'm sitting with the 20" AT's. But, if the range hit from these tires is big and the 21" tires handle decently in the snow, I might consider switching.

Snow tires are an obsession I don’t understand. Those 21” with AWD and a competent driver will be fine for all but a handful of use cases. 18 years driving in windy, snowy Minnesota and far North Wisconsin with Subarus and AS tires was more than enough. If those can handle 30 mph winds and 2-3 foot drifts, you’ll be fine with the Rivian more refined advanced traction control and the 21s.

 

[monzarottie]

On the subject of snow tires, I recently asked which tires were used in the winter testing video that came out a while back.

I thought for sure the response would be that they used the 20" AT tires, the only ones carrying the snowflake/mountain symbol. Apparently that wasn't the case. They were using the standard 21" tires.

They appeared to be in good control of the vehicles, suggesting perhaps that the computer programing and four motors provide a real boost to winter handling.

Hopefully, some of the launch edition buyers will take their vehicles out and test them in the snow. And, of course, post their results.

Right now, I'm sitting with the 20" AT's. But, if the range hit from these tires is big and the 21" tires handle decently in the snow, I might consider switching.

Wow! That’s good info. Thanks for asking them that question. Now, if they could only have a better looking 21” wheel...

 

[Gshenderson]

Wasn’t the deal that when rims went larger tire tire profile went down?
In other words.... OD is same.
So our 20’s will have higher height of tire.
We’d do 21 but word on the street is the 21 is a proprietary size

The 20” tire is about 1.2” larger outside diameter than the 22”. You can actually see it in the Configurator - if you change wheel options the OD tire size changes in the picture of the truck. 21” and 22” appear to be the same OD, but there’s no specs yet that I can find on the 21” to confirm since it’s a brand new size that’s never been made before.

 

[bike123.com]

So with the larger diameter /circumference the 20 should offer the longer range but likely the AT tread robs the efficiency

 

[Laurent]

The 20” tire is about 1.2” larger outside diameter than the 22”. You can actually see it in the Configurator - if you change wheel options the OD tire size changes in the picture of the truck. 21” and 22” appear to be the same OD, but there’s no specs yet that I can find on the 21” to confirm since it’s a brand new size that’s never been made before.

If you do the math, you get the following diameters:
275/65R20 - 34.07"
275/55R21 - 32.91"
275/50R22 - 32.83"

You may able to fit 275/60R20 tires onto the 20" wheels. That would yield a diameter of 32.99".

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