Other (efficient) tire options for AT 20" wheels?

[Taiga]

Love the look of the AT 20" wheels, can't live with the range hit. Love the range of the 21"s, can't live with the look. It's a pickle. There's got to be a tire that fits the AT 20"s and has a less aggressive tread pattern. How many people would go for an all season tire on the AT wheels? Could that produce 300 miles on a full charge in conserve mode with the 20"s? I'd love to see how this looks on the truck. Is this even possible?

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[VenturaLuke]

I'm sure there are plenty of tires that will do it but most people are reporting a range around 295 in Conserve with 20's. I haven't tested it but mine shows about the same. Thats good enough for me!

 

[Taiga]

That's awesome! And might be enough for me too.

 

[Laurent]

You can get a sense of what 33" all-season tires would look like on 20" wheels from those pictures of an early Rivian R1T prototype. They show a 275/60R20 Pirelli Scorpion Verde tire on a black "staple" wheel.

 

[Taiga]

I don't hate that. Wonder what the range would be like?

 

[cpd1]

Planning to fit Michelin Defender LTX 275/60 in the spring, 1 inch smaller than 20” OEM wheel height but same than 21s at 33”. Would assume range will be similar than with 21s.
115 weight rating, vs 116 OEM so 40lbs less but not an issue, speed rating lower too 116 vs 130 but again on issue.
Think the tire is also 7lbs lighter in each corner.
I like the look of the 20s otherwise now that wheel-set are available in the shop, it is also an easy swap.

 

[Guy]

Love the look of the AT 20" wheels, can't live with the range hit. Love the range of the 21"s, can't live with the look. It's a pickle. There's got to be a tire that fits the AT 20"s and has a less aggressive tread pattern. How many people would go for an all season tire on the AT wheels? Could that produce 300 miles on a full charge in conserve mode with the 20"s? I'd love to see how this looks on the truck. Is this even possible?

You do have the 22s which look good have have a much smaller range hit in tests.

 

[McMoo]

I would guess the tire tread pattern is the main reason for range loss so any all season tire will see a big improvement on the 20”, likely closer to the 5% range loss with 22” wheels vs 21” wheels. Just make sure to check load rating and speed ratings. 275/60/20 will offer more options, and should be lighter which means more range.

 

[Taiga]

I would guess the tire tread pattern is the main reason for range loss so any all season tire will see a big improvement on the 20”, likely closer to the 5% range loss with 22” wheels vs 21” wheels. Just make sure to check load rating and speed ratings. 275/60/20 will offer more options, and should be lighter which means more range.

Thanks! Any info on how easy it is to swap wheel/tire setup and have the software recalibrate mileage? Does any of this affect warrantee?

 

[McMoo]

Thanks! Any info on how easy it is to swap wheel/tire setup and have the software recalibrate mileage? Does any of this affect warrantee?

I don’t think they will update the software for the different 20” wheel tire diameter and range calcs. If they eventually let the owner do this on their own you could pick 22” to get a more accurate speedometer reading and range estimate.

 

[camaroz1985]

I don’t think they will update the software for the different 20” wheel tire diameter and range calcs. If they eventually let the owner do this on their own you could pick 22” to get a more accurate speedometer reading and range estimate.

21" tires are also 32.9" diameter. I am considering putting the 275/60R20 version of the Scorpion All Terrain Plus on winter wheels. Would not require reprogramming for the speedo, and are much cheaper than the factory size (currently $255 vs $407). They also weigh 2 lb less (46 lb vs 48lb), and have a load rating that exceeds the axle ratings (2679 lb vs 2480 per tire needed to meet axle rating of 4960, stock tire is 2760 lb per tire). While these tires will probably have no effect on efficiency, the same logic on weight and weight ratings can be applied when looking for a more suitable and efficient 275/60R20 highway tire.

 

[Hepatightass]

21" tires are also 32.9" diameter. I am considering putting the 275/60R20 version of the Scorpion All Terrain Plus on winter wheels. Would not require reprogramming for the speedo, and are much cheaper than the factory size (currently $255 vs $407). They also weigh 2 lb less (46 lb vs 48lb), and have a load rating that exceeds the axle ratings (2679 lb vs 2480 per tire needed to meet axle rating of 4960, stock tire is 2760 lb per tire). While these tires will probably have no effect on efficiency, the same logic on weight and weight ratings can be applied when looking for a more suitable and efficient 275/60R20 highway tire.

Now that the wheel sets are on the Gear Shop, I was thinking of getting the 21" wheels and then buying a set of the 20" Darks, but changing it to 275/60/R20.

I saw that this tire calculator shows speeds will be basically the same as displayed, but do you by any chance know how to calculate the tire pressure change?

Saw a formula online saying to add the % change in width and sidewall height, then multiply that by the factory pressure. Whatever number you get, you then subtract it from the factory pressure and round up to get the new PSI.

No width change, but the sidewall is 9.1% larger so 48 (21" PSI) x .091 = 4.368. Then subtract that from 48 and round up to get 44 PSI (Could also do 48 x .909 to skip the subtraction step).

But, I've never done this before, so I'm not sure if that's correct.

 

[camaroz1985]

Now that the wheel sets are on the Gear Shop, I was thinking of getting the 21" wheels and then buying a set of the 20" Darks, but changing it to 275/60/R20.

I saw that this tire calculator shows speeds will be basically the same as displayed, but do you by any chance know how to calculate the tire pressure change?

Saw a formula online saying to add the % change in width and sidewall height, then multiply that by the factory pressure. Whatever number you get, you then subtract it from the factory pressure and round up to get the new PSI.

No width change, but the sidewall is 9.1% larger so 48 (21" PSI) x .091 = 4.368. Then subtract that from 48 and round up to get 44 PSI (Could also do 48 x .909 to skip the subtraction step).

But, I've never done this before, so I'm not sure if that's correct.

I would set it at 48 psi like factory, then look at wear. All three tire sizes, despite their different sidewalls and construction recommend 48 psi.

 

[Hepatightass]

I would set it at 48 psi like factory, then look at wear. All three tire sizes, despite their different sidewalls and construction recommend 48 psi.

Thanks!

 

[mikehmb]

Planning to fit Michelin Defender LTX 275/60 in the spring, 1 inch smaller than 20” OEM wheel height but same than 21s at 33”. Would assume range will be similar than with 21s.
115 weight rating, vs 116 OEM so 40lbs less but not an issue, speed rating lower too 116 vs 130 but again on issue.
Think the tire is also 7lbs lighter in each corner.
I like the look of the 20s otherwise now that wheel-set are available in the shop, it is also an easy swap.

Eager to hear how these work out for you, esp in regards to range improvement over the 20” A/Ts.

I ran them on my MDX and they were pretty amazing in snow. I was shocked how well they performed (lived in Tahoe at the time).

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