22" Inch 22” wheels with stock scorpions vs. 20” wheels with high efficiency all-season tires: real world range difference

[alexeryan]

Does anyone have experience with swapping the 22” stock sport rims with 20” rims with a high efficiency road tire, such as Hankook ION HT? Not looking for a difference with AT tires, would be interested in range difference between the two wheels with like high efficiency, low rolling resistance tires.

I have a max battery R1T dual. The stated range of the 22” wheels is 420 miles and I’ve found it to be somewhat accurate depending on driving conditions.

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[sub]

The rims with hubcaps have a slight aerodynamic advantage over the other options, but neither of the rims you are asking about are super-aerodynamic or super-light weight.

So any range differences between them are going to be pretty much 100% from the rubber. If you were to put the same brand/model tire on those two rims you should not expect there to be any differences in range.

I have not seen any efficiency comparisons between the OEM Michelin tires and that particular Hankook tire, but I would not expect there to be a particularly large difference. It might be 1% better. Or 1% worse. And either way you are probably not going to be able to measure the difference outside of a lab.

 

[alexeryan]

Thanks for the information, very helpful.

I did find when I put my winter set 3-peak rated tires on 20” rims the range decreased significantly, but I expected that due to the tire makeup for snow/ice.

I’d like to keep the 20” rims with a higher sidewall if the range difference isn’t going to be significant when I switch back to the summer set.

I do access trailheads on USFS roads in the summer but I don’t need a pure A/T tire for that.

 

[alexeryan]

Thanks for the information, very helpful.

I did find when I put my winter set 3-peak rated tires on 20” rims the range decreased significantly, but I expected that due to the tire makeup for snow/ice.

I’d like to keep the 20” rims with a higher sidewall if the range difference isn’t going to be significant when I switch back to the summer set.

I do access trailheads on USFS roads in the summer but I don’t need a pure A/T tire for that.

 

[alexeryan]

Particular to this thread I’ve only found one tire which actually has the EU Class A listing for rolling resistance listed in it’s description: Goodyear EfficientGrip 2 SUV 275/60R20 115H

 

[ENVErider]

This is old but probably still relevant to your question. Scroll to 25:00 if you just want the conclusions. Even with this data in hand (22" is 7% more efficient than 20" AT, 21" is the highest efficiency), I still went with the 20" ATs because I do off-road and/or ski year-round.

 

[Unexplainedbacon]

bump.

will all seasons on the 20” wheel be just as efficient as all seasons on the 22”?

 

[roketdog]

bump.

will all seasons on the 20” wheel be just as efficient as all seasons on the 22”?

This is the closest tool to help you get your answer.
https://riviantrackr.com/rivian-tire-guide/?vehicle=R1&size=275/65R20&category=All-Season

There is no apples to apples comparison bc the 22” tire isn’t available in a 20” size for Rivian. Looking at stats, Hankook ION HT has 3 cars adding to the data and 5K miles vs. Scorpion MS 22” has 1.5M miles and almost 600 cars adding data. I think one main benefit of the 20” is comfort and the Hankook tire will get a decent mileage. I’m close to pulling the trigger on a 20” set to replace ATs for Summer-Fall months.

 

[alexeryan]

I just switched my winter set to 20” Atomic AWDF wheels with Michelin Defender LTX tires. They replaced the stock 22” wheels with Pirelli tires.

Once I cycle through the season I’ll report the data. The winter set had a pretty good MPK for a winter set that were 3-peak rated so we’ll see how these do.

The wheel/tire set are lighter than the stock by a few pounds and the tires are rated fairly high for low rolling resistance so I’m hopeful.

I knew I wanted to go to a 20” wheel, but even though I am on USFS roads a lot in summer didn’t really need an AT tire.

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