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ksurfier

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Update: A great article that discusses/highlights many tire options:

https://www.autoblog.com/article/best-truck-suv-tires/

Highlight: Four high efficiency 275/60R20 tires rise to the top getting ~2.5 MPK:
General Grabber HTS60, Pirelli AS+3, Goodyear Wrangler Territory HT, and Michelin Defender M/S2:
Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710357439585-e7


There's a lot of great info spread out across 5-10 threads here. This post is an effort to condense the info down into one location, links to contributing threads are below:

If you are looking for comparable info on OEM tires, see this thread:
High efficiency 20" wheels and ~34" tires options (R20 - 285/60 - 275/65 - 285/65 - 295/65)

Below is a list of 275/60R20 Tires that can be grouped into the high efficiency (>2 MPK) and ultra hi-E (>2.3 MPK) clubs, organized by weight based on the correlation of low weight and high efficiency (I know, I know, rolling resistence-schmolling resistence...), also note there is a correlation to tread depth and weight:

The tires were also graded primarily based on weight/efficiency, A rating for tires with efficiency above 2.4 MPK. B rating for tires >2.3 MPK and less than 2.4. C rating for tires >2.2 MPK and less than 2.3. D rating for tires >2.1 MPK and less than 2.2. E and F ratings for the heavier tires 2.0 MPK and less...
Efficiency Grades (20")MPKNote
A>2.4This is equal to or better than the 21" OEM option
B>2.3Better than 20"/22" OEM options
C>2.2Better than or equal to 20" OEM and equal to 22" OEM option

The following equations describe the relationship between MPK (y, miles per kwh) and Tire Weight (x, pounds):
All Purpose Tire Efficiency = 3.35 MPK - (2.5% of Tire Weight) [Y=3.35-X/40]
Conserve Tire Efficiency = 3.7 MPK - (2.5% of Tire Weight) [Y=3.7-X/40]
Additional info related to MPK estimates:
Speed has a large impact on efficiency specially over 60 MPH, explained as follows:
2.6 MPK - [SPEED OVER 60]/20; [Y=2.6-(x-60)/20, where x is speed]
At 70 mph that's 2.1 MPK (2.6-0.5)
At 80 mph that's 1.6 MPK (2.6-1.0)

Temperature is another big factor for efficiency as the density of air changes significantly with different temps, a generalized equation describes the change as an increase of 0.1 MPK for every 7 degrees farenheit higher temp.

Elevation will impact efficiency as higher elevations have lower density air, so 2.0 MPK in Denver is equivalent to ~1.7 MPK at sea level.

Given all of these factors, someone in Denver on an 80F day driving 60 MPH in Conserve mode on 33" General Grabber HTS60s might be able to get 3.3 MPK whereas someone at sea level with a heavy AT tire (65#) driving in AP on a 40F day might only get 1.3 MPK. Not a big surprise that most peoples MPK fall somewhere in the middle near ~2.3 MPK due to all the different variables at play.

GRADE/
LOAD/PSI (max)
UTQGExamples (275/60R20)Width / Depth
(inches)
#s/
$s
Actuals from 15-minute Testing
(60/65/70/75)
All Purpose
(70 F @50 psi)
mi/kwh
(MPK)
Daily range in AP (80-20%)**100%
eRange
(A) XL/51
620 AB($) Gen. Grabber HTS60 (116T)
8.6 / 10/32​
34/
$212
-/2.2/-/-
(53 F, 48 psi 95% tread)​
2.50
194 [344]320-358
(A) SL/51​
800 AA($) Pirelli AS+3 (115H)
8.3 / 11/32​
38/
$273​
tbd​
2.40
186 [330]307-345
(A) XL/50
680
AB
($) Goodyear Wrangler Territory HT (116T)
8.2 / 11/32​
39/
$245
tbd​
2.38
184 [326]304-342
(B) SL/51​
580 AB($)
Goodyear Wrangler Territory AT (115S)
9.0/
12/32​
40/​
$239
tbd​
2.35
182 [323]301-339
(B) XL/50
820 BA($$) Defender LTX M/S2 (116H)
7.8 / 11/32​
40/
$302​
2.5/2.4/2.2/2.0
(Est.)​
2.35
"​
"​
( B) XL/50
660 AA($) GEOLANDAR CV 4S (116H) SNOW
8.1 / 13/32​
41/
$280
tire not yet avail.
2.33
180 [320]298-336
(B) SL/44​
800
AB
($$) Bridgestone Alenza AS Ultra (115H)
8.5 / 10/32​
42 / $290​
tbd​
2.30​
178 [316]294-333
(B) SL/44
740 AA($) Cooper Discoverer SRX (115H) SNOW
8.9 /
11.5​
42/
$212
tbd​
2.30
"​
"​
(B) SL/51720 AA($) Nokian One HT (115H)
unk /
12.5​
42/​
$243
tbd​
2.30​
"​
"​
(B) SL/51​
640 AA($) Kumho Crugen HP71 (115H)
7.8 / 11/32​
42/
$228
tbd​
2.30
"​
"​
(B) SL/44600 AB($$) Toyo Open Country R/T Trail
9.0 / unk​
43/​
$345
tbd​
2.25​
174 [309]288-326
(C) SL/51​
660 AB($) Hankook Dynapro At2 Xtreme (115T)
8.8 / 12.5/32​
44/
$258​
tbd​
2.25​
"​
"​
(C) SL/51​
720 AA($) Conti. TerrainCntct H/T (115H)
8.9 / 12/32​
44/
$259​
tbd​
2.25​
"​
"​
(C) SL/51​
600
AB
($) Yokohama Geolandar A/T G015 (115H) SNOW
8.3 / 12/32​
45/
$261​
tbd​
2.23​
172 [306]284-322
(C) XL/50
500 AB($$) Nitto Ridge Grappler (116T)
8.9 / 13.5/32​
45/
$313​
tbd​
2.23​
"​
"​
(C) XL/50​
none($) Nitto Nomad Grappler (116H)
SNOW
9.1 / 13.2/32​
45/
$250
tbd​
2.23​
"​
"​
(C) SL/51​
680 AA($) Kumho Road Vent. AT52 (115T) SNOW
9.1 / 13.5/32​
46/
$234
tbd​
2.20​
171 [303]282-320
(D) SL/50​
640 AB($$$) OEM Pirelli AT+ (116H) [275/65R20] SNOW
9.1 / 13/32​
48/
$462​
2.2/2.1/1.9/1.7
(55 F, 50 psi 80% tread)​
2.15​
167 [296]275-314
(E) XL/50​
640 AB($) Gen. Grabber A/TX (116T) SNOW
9.6 / 14/32​
50/
$271​
tbd​
2.10​
163 [289]269-307
(E) LT-D/65​
none($$) Kumho Road Venture AT52 (119S)
8.8/ 16/32​
52/
$350​
tbd​
2.05​
160 [283]263-300
(F) LT-E/80​
none($$$) Mich. Defend. Platinum (126S) [275/65R20]
8.9 / 14/32​
60/
$424​
tbd​
1.85​
143 [254]237-288
(F) LT-E/80​
none($$) Gen. Grabber A/TX (126S) SNOW [275/65R20]
8.9 / 16/32​
64/​
$377

tbd​
1.7​
130 [232]218-269
(F) LT-E/80​
none($$$) Mickey Thompson Baja Boss (126) [275/65R20]
9.7 / 18.5/32​
64/​
$422
(1.7/1.6/1.5/1.3)^^
test at elevation, adjusted for sea level​
1.7​
* Add ~0.3 mi/kwh for Conserve mode; range will increase by ~30 miles or so...Assumes 65 mph, flat terrain, no wind, no cargo/passengers. But friends don't let friends use conserve mode...
**-Plus 30 minute supercharge (+60kwh)

20" OEM QM efficiency (EPA): 289 mi / 2.1 mi/kwh
21" OEM QM efficiency (EPA): 321 mi / 2.4 mi/kwh
22" OEM QM efficiency (EPA): 303 mi / 2.2 mi/kwh

My top four choices come mainly from wanting a wider tire, they are in order:

1) General Grabber HTS60 [320 m. Range; 620 AB] - Best efficiency/range and 116 (but only 10/32 tread - ~20k miles expected). Also a A/T tire in XL and D size (65 psi) available. Cost per mile of $0.05 for tires plus $0.15 for electricity. $200 per 1,000 miles operational cost. Wet stopping dist. - 140 feet; wet cornering 0.60 G-Force. (Photo source: LL75; Rims (32#) - Atomic Wheels AW09 - Gloss Black 20x8.5" +48 offset - $2,580.00 [~$2k w/ discount])
Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710872251194-2


2) Pirelli AS+3 [307 m. Range; 800 AA] - Excellent efficiency and UTQG, width and 115 not so great, only 11/32 tread, also only 20-25k miles expected. Cost per mile of $0.06 for tires plus $0.16 for electricity. $220 per 1,000 miles operational cost. Wet stopping dist. - 132 feet; wet cornering 0.62 G-Force. (Photo source: JJE; Rims - OEM 20")
Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710880136890-ci


3) Continental TerrainContact H/T [288 m. Range; 720 AA], special note for #3, it's also a high performance tire, rating much higher on wet performance and stopping distance....potentially 30k miles. If you're in a rainy area this is prob. the best choice. Cost per mile of $0.04 for tires plus $0.17 for electricity. $210 per 1,000 miles operational cost. Wet stopping dist. - 109 feet; wet cornering 0.70 G-Force. (Photo source: DoubleTake; Rims (33#) - EV Sportline Adventure Bronze - 20x8.5" +48 offset - $1,995.95)
Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710878874533-d7


4) Goodyear Wrangler Territory HT [304 m. Range; 680 AB], only around 25k miles tire life expectancy. Some light off roading is possible with this tire if you are careful. The only reason this tire is #4 is tire width (and no treadwear warranty), it's pretty narrow at 8.2". Cost per mile of $0.04 for tires plus $0.16 for electricity. $200 per 1,000 miles operational cost. Wet stopping dist. - n/a feet; wet cornering n/a G-Force. (Photo source: Goodyear.com)
View attachment 89493

Three options come with a 65-70k warranty. Goodyear Wrangler doesn't.

A new Yokohama tire option on the horizon that is 3PMSF, 116H, lightweight (41#), and UTQG=660AA:
Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1711148644066-q

Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1711148483844-p3

The Defender LTX M/S2 doesn't make the list since it's extremely narrow (<8"), it's also $100 more than the General Grabber HTS60. But it's a very highly rated tire so may be worth it for certain uses (snow/rain and light offroad).

The OEM 20" tire has an operational cost of almost $300 per 1,000 miles...

Discussions on 275/60 tire choices:
R1T 20" AT Replacement Tires?
My R1T's Most Miles Driven on 1 Tank of Battery = 366.5 miles
Time For Some New 20" Tires
20 Inch MICHELIN® X® LT A/S 2 (XL 275/60R20)
20" tire recommendations
Michelin Defender LTX Platinum
Weight rating RAM 2363 wheels?
What's the best wheel size for range and tire longevity?
Hello from Discount Tire!
20-inch [AW09] Forged Wheels by Atomic Wheels
20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!


General disclaimer: Tire sizing and performance is convoluted and confusing, above info is simplified and generalized so the average person can see how range and efficiency change with different tire options. There are at least 5-10 other sizes that would likely work on the 20" OEM rims or an aftermarket option. This thread focuses only on size 275/60R20 so it's straightforward. If you are even remotely thinking of doing major offroading with your Rivian than most likely none of the above options will work for you. Ideally you'd have 2-3 sets of tires like a few folks here have, 1) Winter (if applicable), 2) Offroad (if applicable), and 3) Onroad set. For winter tires, best to be `34" diameter and not super wide. For offroad, best to be 34-35" and around 10" wide, best tire onroad is 33" and between 8-9 inches wide (lightweight ~35-45#s).
For any efficiency tests, it's important to note if Conserve is being used (best to test in AP). You might be tempted by someone reporting a 275/65R20 tire (60#) getting 2.2 MPK when reality is that AP MPK is going to be ~1.8...

Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) tires

Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710881574673-t1

END

Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) 1710880107968-15

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DoubleTake

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I just got a set of the terrain contact h/t. They get installed Thursday
 

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like @Mtbaddict I'm curious how you're calculating the various efficiency and range numbers.
 

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There's a lot of great info spread out across 5-10 threads here. This post is an effort to condense the info down into one location, links to contributing threads are below:

Below is a list of 275/60R20 Tires that can be grouped into the high efficiency club, organized by weight based on the correlation of low weight and high efficiency (I know, I know, rolling resistence-schmolling resistence...), also note there is a correlation to tread depth and weight:

PSI (max)UTQGExamples (275/60R20)Width / Depth
(inches)
#sAll Purpose
mi/kwh
eRange
51​
620 ABGen. Grabber HTS60 (116T)
8.6 / 10/32​
34​
2.50​
320-358
51​
800 AAPirelli AS+3 (115H)
8.3 / 11/32​
38​
2.40​
307-345
50​
820 BADefender LTX M/S2 (116H)
7.8 / 11/32​
40​
2.35​
301-339
51​
640 AAKumho Crugen HP71 (115H)
7.8 / 11/32​
42​
2.30​
294-333
51​
720 AAConti. TerrainCntct H/T (115H)
8.9 / 12/32​
44​
2.25​
288-326
51​
680 AAKumho Road Vent. AT52 (115T) SNOW
9.1 / 13.5/32​
46​
2.20​
282-320
50​
640 ABOEM Pirelli AT+ (116H) [275/65R20]
9.1 / 13/32​
48​
2.15​
275-314
50​
640 ABGen. Grabber A/TX (116T) SNOW
9.6 / 14/32​
50​
2.10​
269-307
* Add ~0.3 mi/kwh for Conserve mode; range will increase by ~30 miles or so...Assumes 65 mph, flat terrain, no wind, no cargo/passengers.

20" OEM QM efficiency (EPA): 289 mi / 2.1 mi/kwh
21" OEM QM efficiency (EPA): 321 mi / 2.4 mi/kwh
22" OEM QM efficiency (EPA): 303 mi / 2.2 mi/kwh

My top choices come mainly from wanting a wider tire, they are in order:

1) General Grabber HTS60 [320 m. Range; 620 AB] - Best efficiency/range and 116 (but only 10/32 tread - ~20k miles expected). Also a A/T tire in XL and D size (65 psi) available. Cost per mile of $0.05 for tires plus $0.15 for electricity. $200 per 1,000 miles operational cost.

2) Pirelli AS+3 [307 m. Range; 800 AA] - Excellent efficiency and UTQG, width and 115 not so great, only 11/32 tread, also only 20-25k miles expected. Cost per mile of $0.06 for tires plus $0.16 for electricity. $220 per 1,000 miles operational cost.

3) Continental TerrainContact H/T [288 m. Range; 720 AA], special note for #3, it's also a high performance tire, rating much higher on wet performance and stopping distance....potentially 30k miles. If you're in a rainy area this is prob. the best choice. Cost per mile of $0.04 for tires plus $0.17 for electricity. $210 per 1,000 miles operational cost.

All 3 come with a 65-70k warranty.

The OEM 20" tire has an operational cost of almost $300 per 1,000 miles...

Discussions on 275/60 tire choices:
R1T 20" AT Replacement Tires?
My R1T's Most Miles Driven on 1 Tank of Battery = 366.5 miles
Time For Some New 20" Tires
20 Inch MICHELIN® X® LT A/S 2 (XL 275/60R20)
20" tire recommendations
Michelin Defender LTX Platinum
Weight rating RAM 2363 wheels?
What's the best wheel size for range and tire longevity?
Hello from Discount Tire!
20-inch [AW09] Forged Wheels by Atomic Wheels
20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!



tires.jpg
Thank you!
 

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I think he compiled it from owners reported in this forum.
Yes, Riviot, SolartoEV, JJE, NCRivian and many others…Once plotted, the common denominator is tire weight (at least for anything getting above 2.2 mi/kwh in All Purpose). It’s tricky because how/where you drive is #1 factor, definitely some guesswork involved.
 

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Yes, Riviot, SolartoEV, JJE, NCRivian and many others…Once plotted, the common denominator is tire weight (at least for anything getting above 2.2 mi/kwh in All Purpose). It’s tricky because how/where you drive is #1 factor, definitely some guesswork involved.
As you know that I am on the General grabber with atomic wheels aw09, but only have about 250 miles on it. We do charge to 80% everyday. When the truck was with the 21", it showed 246 miles at 80%. With the new tires and wheels combo after drivien for 250 miles, it showed 249 miles at 80%. Is that means the new setup is more efficient? I'm waiting for the tires to hit around 500 to 600 miles to do road test for the general grabber.
 

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ksurfier

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Yes, that’s suggesting a 100% range of 311 miles and efficiency of ~2.3 mi/kwh.
if you get a chance, try 15 miles at 60-65 on flat terrain without wind and ~50f…that may get you into 2.5s. Screen on the left behind steering wheel will show efficiency for last 15-min, take shot of that and post it. Are you running AP or Conserve (or mix).? Recommend AP unless you really need the range…
 
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LL75

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Yes, that’s suggesting a 100% range of 311 miles and efficiency of ~2.3 mi/kwh.
if you get a chance, try 15 miles at 60-65 on flat terrain without wind and ~50f…that may get you into 2.5s. Screen on the left behind steering wheel will show efficiency for last 15-min, take shot of that and post it. Are you running AP or Conserve (or mix).? Recommend AP unless you really need the range…
We don't ever use conserve mode unless we are going out of town, which we hardly do. I will try to do both conserve and all purpose mode test as soon as I get to 500 miles on this tires. (still feel a little sticky). Dallas roads are very flat, however, it has been super windy about 15 to 20 mph everyday which not ideal for testing.
I do have a 200 miles trip planning in April to Norman, so definitely will test that as well.
 

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like @Mtbaddict I'm curious how you're calculating the various efficiency and range numbers.
Here is some data. My R1S quad large is programmed to 22’s. I have OEM 20 brights with 275/60/20 Pirelli. I did a 100% to 0 driving test for my use case. Took 10 days to drain. 343 miles in conserve. I did the same test in AP mode, 293 miles.
On highway trip on FL turnpike I see 2-2.25. My S is 5-10% more efficient than my R1T with 21’s, large quad.
R1T lifetime over 5700 miles was 2.31.
Current lifetime with my S at 6800 miles is 2.48.

Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) uuid=8289A96C-4AE6-4B52-BFBE-6F964BAB14AF&library=1&type=1&mode=1&loc=true&cap=true


Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) uuid=625857EA-7C2A-4B43-88A1-3AB17BCA62C3&library=1&type=1&mode=1&loc=true&cap=true


Rivian R1T R1S Affordable high efficiency 20" wheels and 33" tires options (275/60R20) uuid=1910A22A-85D2-4357-8554-BE28F1B1F890&library=1&type=1&mode=1&loc=true&cap=true
 
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That tire is something, do you feel it has any downsides? Width is borderline, so is load, but any handling or ride characteristics that you feel are negatives? Also, what is your 80% range indicator? Thanks for adding this data!
 

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It’s tricky because how/where you drive is #1 factor, definitely some guesswork involved.
Battery temp makes the biggest % difference for me, so if comparing efficiencies, you need to afix a few factors:
-Tire pressure
-battery temp (external temp don't matter none if it's a short test run)
-equal conditions (wet, dry, rain, etc... So long as it's the same for each test you do)
-Route and average speed
-Drive mode/height
-cabin conditions
-carrying weight (less burritos = better efficiency @COdogman )

I'm about to rotate my 2363 ATs, if it
Screw it, for science, I'll swap early and test my 3 275/60R20 setups: AS+3 on stock staples, AS+3 on 2363s, AT3W on 2363s. Give me a couple weeks to squeeze in a couple more ski trips and I'll post results.
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