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Discussion Starter #1
At 20K, the Bridgestone Potenza RE97AS tires on my ELR are done. I can't wait to get them off my car. Both are down to 2/32 in the front, 4/32 right rear, 8/32 left rear - that tire was replaced by Firestone last February. These won't make it through a winter here in Pittsburgh, and the RE97AS is one of the lowest rated tires on Tire Rack. Car has had regular rotations starting at 7322 miles, and every 7500 miles after that.

http://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=Potenza+RE97AS&partnum=44HR0RE97AS&vehicleSearch=true&fromCompare1=yes&autoMake=Cadillac&autoYear=2014&autoModel=ELR&autoModClar=

Long story short, the OEM Potenza tires have a no mileage warranty, and wear out is not covered by the bumper to bumper warranty. Been shopping for tires, and I'm looking for a good tire that's good in the wet, light snow, and has a reasonable mileage warranty.

Looking at the Pirelli Cinturato P7 All Season Plus, Continental ExtremeContact DWS 06, and the BF Goodrich G-Force Comp-2 A/S. Leaning towards the BFG as I detect some of Michelin technology from the Pilot Sport series trickled down to the Comp-2 A/S – and they are at a competitive price point. No Michelin tires were available in a 245/40R20, I'd have to bump up to a 245/40R20. A really tall tire like that would look a little odd on the ELR.

Thoughts?
 

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Shop the Tire Rack online. Try to match the specs close to the OEM for tread width. If you install a wider tire your EV range and also gas mileage will suffer. According to the link the spec is 8.6 " wide on those Bridgestones, other tires in that size are over 9" wide. Try to avoid the wide choices.
 

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So, presumably these are all year round tires, so no snows. I think the Contis would be my preferred choice then, though I admittedly know nothing about the BFGs and the possible trickle down tech from the PilotSports. If the ELR is hard on tires, and not just OEM tires, then you might want to consider rotating them more often, every 5000 miles.
 

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At 30k miles, mine are starting to make death noises as well. I don't need snows here in TX.

I want the quietest tire available regardless of range effect. Price is secondary.

In order of my want list:
- Quiet, primary consideration.
- good looking, so can be plus size
- traction/handling, OEM or better
- efficiency, can be less efficient
- longevity, 30k or better
- price, depends on other specs.

Suggestions?
 

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I put a set of Pirelli's on my wife's Subaru and have been very pleased with them. They are quiet, handle very well, and are wearing better than expected. We live in NE Pennsylvania and see quite a bit of snow and the Pirelli's provide reasonable traction in snow and ice. Overall I think they are a very good tire at a very competitive price. I will probably go with them for my Volt when the time comes.
 

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Discussion Starter #7
If money is no object then there's only one pick. Michelin!
There were no Michelin tires available for 245/40R20 - would have to up to a 245/45R20

tire rack plus size.jpg

And as far as the tread width compared to the OEM Potenza tires, the difference is minuscule - BFG, 8.8, Bridgestone, 8.6. The Pirelli P7 tires a fairly skinny at 7.3.

tire rack.jpg

I decided to go with the BF Goodrich G-Force Comp-2 A/S tires after pouring through a boatload of reviews from Tire Rack and other sites. If I get close to 40K out of them, I'll be happy. It was suggested that rotation every 5K might be better for a UHP tire - will get with Cadillac service about that to adjust the service interval. Premium care provides free rotations and oil changes (not that I've needed one) every 7500 miles for 4 years of 50,000 miles. It will be interesting to see how a non low rolling resistance tire performs with this car. Stay tuned.
 

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Hi myoda,

I know that this is probably too late since it looks like you made up your mind on the BF Goodrich G-Forces. Cooper Tire makes a new Cooper Zeon RS3-G1 that has received some very positive reviews. I myself have purchased Cooper tires in the past, and always had good luck with them. Keep us posted on your BF Goodrich G-Forces. Best of Luck!
 

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Discussion Starter #9
Thanks Vn-Vet-Volt - could not have timed this purchase better. The snow was starting to fall as I was ready to leave. Props to Highland Tire for beating a Pep Boys price on the setup and install. These tires are actually pretty cool looking, and quiet. Can highly recommend the G-Force Comp-2 A/S as a replacement ultra high performance tire for the ELR or a Volt.

20170105_120817.jpg 20170105_133221.jpg 20170105_133232.jpg


https://drive.google.com/open?id=0BwmH6e2GMW7qNldfU1JpMEZZVzlvM1ZPcEkyd1R0d1JYR0Jj

https://drive.google.com/open?id=0BwmH6e2GMW7qUnZTOGQ5bFFyZnRLZHlwd1VNcm1VX0dOdkow

https://drive.google.com/open?id=0BwmH6e2GMW7qV25zNTc4amZPNldfY0N4cEJMNDFIYmVQd3dB
 

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I'm looking at Pirelli P-Zero in stock size.

Pirelli P-Zero 245 /40 R20 99Y XL BSW FO

The Pirelli's are known to be quiet, but, only last a short time (some reviews are saying 20k mi). They are called a 'summer tire' on DT site which is fine with me as we rarely get snow/ice.

Anybody have experience with these?
 

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I'm looking at Pirelli P-Zero in stock size.

Pirelli P-Zero 245 /40 R20 99Y XL BSW FO

The Pirelli's are known to be quiet, but, only last a short time (some reviews are saying 20k mi). They are called a 'summer tire' on DT site which is fine with me as we rarely get snow/ice.

Anybody have experience with these?

Hi Loboc,

Click on this URL for others who have purchased these tires:

http://www.1010tires.com/Tires/Reviews/Pirelli/P-Zero#Reviews

The reviews don't sound like a resounding endorsement.
 

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Thanks for the heads up... mine seem to be doing okay yet, appear to be around 8/32 at 14K miles so probably only slightly better than yours have done, but that could change quickly too. I'm certainly not expecting them to go past 30K.

Also interested to hear how your choice does in snow.
 

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Discussion Starter #15
Have not been out in the snow yet. Not to slippy up here yet. There is actually a GM part number for these tires - 19337115. It is like driving a new car.

GM BFG.jpg
 

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Thanks Vn-Vet-Volt - could not have timed this purchase better. The snow was starting to fall as I was ready to leave. Props to Highland Tire for beating a Pep Boys price on the setup and install. These tires are actually pretty cool looking, and quiet. Can highly recommend the G-Force Comp-2 A/S as a replacement ultra high performance tire for the ELR or a Volt.

View attachment 126897 View attachment 126905 View attachment 126913


https://drive.google.com/open?id=0BwmH6e2GMW7qNldfU1JpMEZZVzlvM1ZPcEkyd1R0d1JYR0Jj

https://drive.google.com/open?id=0BwmH6e2GMW7qUnZTOGQ5bFFyZnRLZHlwd1VNcm1VX0dOdkow

https://drive.google.com/open?id=0BwmH6e2GMW7qV25zNTc4amZPNldfY0N4cEJMNDFIYmVQd3dB
Very sharp. I think all 3 of your choices were good ones, but the Comps look great.
 

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Discussion Starter #18
I guess the PZero would be a good summer tire, but I'd be concerned with the tread life.
 

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Discussion Starter #19 (Edited)
At 800 miles on the new tires as of today. Pouring down rain on the PA Turnpike on the way back from Monroeville. No problems at 70 in the rain. They really stick! Not a lot of snow in this end of the state. trekguy77, did you replace your Bridgestones yet? Your car will thank you.

The tread pattern is pretty aggressive, but not noisy. Feel much more confident driving the car. It's very sporting to drive now.

20170209_173320.jpg

update 2/11/17 900 miles later

My car has been very reliable since May 2015. If I were buying an ELR again, the first thing I'd do is replace the OEM Bridgestone tires - especially if you live in a place that gets snow or rain. The treadwear, noise, and lack of grip were awful at 15,000 miles with the OEM Potenza tires. We've had some pretty severe swings in weather over the last week, and the new tires (bf goodrich g-force comp2 A/S) are performing as advertised, especially when sport mode is engaged. The new tires totally improved the driving dynamic of the car.
 

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Resurrecting an old thread....
Last week I replaced the stock tires on my 2014 ELR. Since its a lease, and I am turning it in in 5 months, I went real cheap. I still got tires that exceeded load and speed ratings, tho. As long as it was a 'temporary' thing, I would have preferred a US Co.
I wound up with Hercules iMove Gen2 AS. I wasnt expecting much out of them, but holy cow is the difference night and day!
The ride is MUCH smoother and TONS quieter! I havent really leaned on them yet, so not sure about performance. But I really didnt think I would notice any difference and boy was I wrong. I dont know if that says 'good' things about these new shoes, or bad things about the stocks...
I have to say tho, that right off, I think I am noticing a big drop in EV range. It 'seems' it takes about 10% more power to do what I usually do. Its been cold here the past few days, and I didnt bother to add air, so I am running about 35PSI cold, I normally go 36-37PSI. The cold on the combination of the tire pressure and battery shows me losing a little over 10% range.
Reading up on LRR tires, no one seems to think they improve efficiency more than 3-7%. Maybe the Hercules are just that much stickier, but we'll see once the temps stabilize. If we were 20 degrees colder, I would say my "miles per charge" is normal. Just dont know how it sits right now....
 
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