Hankook iON HT 275/55R21 XL

[ak-bos]

I would start out saying, I'm in San Diego, CA and have had the vehicle (R1S Dual on 21's with Aero Covers on) for <2 years. Our temperature is fairly consistent throughout the years. I don't know how much temperature affects it, but I figured I'd put it out there.

Driving about 55-60% highway, 40-45% city. On highway, mostly cruising from 75-80 mph. I wouldn't say I have a lead foot, but I'll definitely punch it every now and then to pass someone.

I've made no difference in my driving habits or driving highway/city since the tire change. But here's where I'm at.

The patterns do make the tire look "more aggressive", but it's still an ordinary all-season/highway tire. I would say these tires are quieter, plushier, rides well compare to the originals. Pretty comfy I would say.

Original Set of Tires (Original Pirellis):
33,500 miles over 13,684 kWh = averaging 2.45 mi/kWh

New Set of Tires (Hankook iON HT):
744 miles over 352 kWh = averaging 2.11 mi/kWh

Looking at it, it appears to be a 15% efficiency loss.

Based on quick math, if I compare the same 33,500 miles at 2.11 mi/kWh, I would require 2,192 kWh more than the Original Pirellis. And since I normally charge at night (Super Off Peak) at about $0.10/kWh, appears to be ~$220. So I guess if I double it to 67,000 miles for life of the tires, then maybe about ~$440.

With Hankook @ $235/tire (Price Matched with Mavis) vs Michelin Defender @ $392/tire (Discount Tire), not considering any rebates, I might end up slightly ahead. But at $282-296/tire, the Defender with rebates is definitely worth considering.

Just my two cents. Hope that helps!

Very informative, thank you! Although I think my biggest takeaway was more about how different the entire experience is in San Diego than New England. We also don't have any peak/off-peak electric rates, so my cost is always the same - expensive - rate.

Ok.... if 20 people in the country nerd out over tires and their efficiency impacts more than me, I'd love to meet them.

To keep it short: New tires are about 10 to 15% less efficient than worn tires. The last 10,000 miles of tire life on the old tires are going to be substantially more efficient than the first 10,000 miles of your new tires. Basically, you went from one extreme to the next.

Judge these based on the full life of the tires.

I have the Hankook 21's BTW.

I probably don't nerd out over tire efficiency as much, specifically. But energy consumption and efficiency in general is an obsession hobby of mine. As part of doing tire research I had the realization that all my Rivian data already is in Home Assistant, so as soon as I find some spare time I'm going to start building efficiency tracking dashboards in there.

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[LL75]

I would only do efficiency testing after put on around 2K miles depending on tires. My general grabber HTS 60 was sub 2.0 efficiency for the first 1k miles or so and after that, it is better than my 21" OEM Pirelli.

BTW, I'm jealous of people who get 30K plus off the 21" pirelli. Two sets of pirelli on a quad and a dual. Both lasted 18K miles. !!!

 

[VandalSibs]

BTW, I'm jealous of people who get 30K plus off the 21" pirelli. Two sets of pirelli on a quad and a dual. Both lasted 18K miles. !!!

Hopefully I get to be another person that makes you jealous! I'm at just under 15k miles (been rotating every 5k miles since a recommendation from a mobile Rivian tech when I mentioned that my wife and I are towing with the truck), and I think I was still at 8 or 9/32nds tread depth. I'll take that as a good sign, but I'll find out at my next rotation.

 

[LivingInKaos]

I've got right at 4k miles on the 21" Hankooks now. While the driving performance is great, the downfall is highway speed efficiency. They are pretty bad. I am getting between 1.5 and 1.75mi/kwh on flat highway at 75mph. My oem 20's will give me that. It doesn't bother me much knowing the cost of the tire though, because at $100ea price differential against the Michelins alone is worth the efficiency loss across the life of the tires. On longer trips I tend to charge more often and keep in the 5%-65% range just to keep charging times down, so the loss of range really isn't a huge deal. If I have a trip that I have a section that will be tight on range, I'll throw the pirelli 21's back on ( I have a full other set of 21's)

 

[LL75]

Hopefully I get to be another person that makes you jealous! I'm at just under 15k miles (been rotating every 5k miles since a recommendation from a mobile Rivian tech when I mentioned that my wife and I are towing with the truck), and I think I was still at 8 or 9/32nds tread depth. I'll take that as a good sign, but I'll find out at my next rotation.

OEM tires are definitely not made the same. Been in this forum for awhile now and I see anywhere range from 15k to 40k. Maybe Texas roads chew up tires more than other states. My general grabbers hts60 only last 18k miles. Currently run the Michelin defender ltx2. Just rotated at 7500 miles and it still have 9/32 . Warranty at 70k miles but I would be damn happy if I get 30k miles out of it

 

[LL75]

I've got right at 4k miles on the 21" Hankooks now. While the driving performance is great, the downfall is highway speed efficiency. They are pretty bad. I am getting between 1.5 and 1.75mi/kwh on flat highway at 75mph. My oem 20's will give me that. It doesn't bother me much knowing the cost of the tire though, because at $100ea price differential against the Michelins alone is worth the efficiency loss across the life of the tires. On longer trips I tend to charge more often and keep in the 5%-65% range just to keep charging times down, so the loss of range really isn't a huge deal. If I have a trip that I have a section that will be tight on range, I'll throw the pirelli 21's back on ( I have a full other set of 21's)

That is super low for 21 all season tires . My dual r1t with 17k miles are at 4/32. Almost purchase the hankook last month. Instead found some pirelli on Facebook market to replace.

On my r1s, I'm running the Michelin defender in size 275/60/20 at the moment. Efficiency is 2.15 with 7500 miles on it. I got 2.33 with the general grabbers hts60. My original 21" is 2.30.

The weight of the combo atomic wheel and general grabber is almost 17 lbs lighter than the original 21" wheels. I might go back to the grabber after this Michelin

My r1s only has 47k miles and this is my 3rd set of tires. Can't say it is style of driving bcz this is my wife's car and she drives like a grandma

 

[LivingInKaos]

That is super low for 21 all season tires . My dual r1t with 17k miles are at 4/32. Almost purchase the hankook last month. Instead found some pirelli on Facebook market to replace.

On my r1s, I'm running the Michelin defender in size 275/60/20 at the moment. Efficiency is 2.15 with 7500 miles on it. I got 2.33 with the general grabbers hts60. My original 21" is 2.30.

The weight of the combo atomic wheel and general grabber is almost 17 lbs lighter than the original 21" wheels. I might go back to the grabber after this Michelin

My r1s only has 47k miles and this is my 3rd set of tires. Can't say it is style of driving bcz this is my wife's car and she drives like a grandma

The interesting thing is if I dial back to 70mph they will run right at 2mi/kwh. They are 5lb heavier than OEM if I recall. In urban settings, they do pretty well too. It's just anything over 75 and the curve dives off

 

[LL75]

The interesting thing is if I dial back to 70mph they will run right at 2mi/kwh. They are 5lb heavier than OEM if I recall. In urban settings, they do pretty well too. It's just anything over 75 and the curve dives off

You can't drive 70 in Texas highway. Everyone gonna pass you. But the magic number seems to be 65 to 70 to get the most efficiency. What did u get with the original pireli ? Mine is around 2.31 all purpose . Most of the 17k miles are driving in the city. We only took 2 trips with it total of less than 1k miles

 

[rogersmj]

Have any of you that installed these tires noticed a marked difference in ride quality over small pavement imperfections at lower speeds?

My R1S is terrible in this regard and, while there might be something going on with my suspension too, I'm hearing that the Pirelli Scorpion MS might not be doing me any favors.

 

[ColdBrewEV]

Have any of you that installed these tires noticed a marked difference in ride quality over small pavement imperfections at lower speeds?

My R1S is terrible in this regard and, while there might be something going on with my suspension too, I'm hearing that the Pirelli Scorpion MS might not be doing me any favors.

For me, I think this tire improves ride quality in every way -- rides well and grips well. I used to feel everything, especially in the lower to medium speed range, but this balances it out well. Not sure how to describe it, but it softens it? or it's not as harsh/noticeable as the Pirellis.

Other than efficiency numbers, I'd still think this is better overall tire than the OEM Pirellis.

 

[NauticalSpiR1T]

Any more efficiency figures from others. I'm looking at this tire or the Michelin Defenders.

 

[Effopec]

Any more efficiency figures from others. I'm looking at this tire or the Michelin Defenders.

Would love to get that info too. I've got to decide within the next couple of weeks.

 

[superfly_snook]

I've got right at 4k miles on the 21" Hankooks now. While the driving performance is great, the downfall is highway speed efficiency. They are pretty bad. I am getting between 1.5 and 1.75mi/kwh on flat highway at 75mph.

this seems absurd. My 20” OEM Pirelli ATs do better than that. I was hoping for better from the iONs.

 

[UnsungZero_OldTimeAdMan]

this seems absurd. My 20” OEM Pirelli ATs do better than that. I was hoping for better from the iONs.

And yet, in recent days, I see influencers claiming amazing efficiency... Influencers. Enough said.

 

[ColdBrewEV]

Based in Southern California where temperatures were warmer this past winter.

Installed 11/25. As of today (5/26), going off the in-car trip meter:
8,755 miles
3,860 kWh
2.25 mi/kWh
37 mph
9d 23hr

Prior to taking off original Pirelli’s (12/23 to 11/25):
33,500 miles
13,684 kWh
2.53 mi/kWh

Hope that helps. Will update along the way!

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