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Winter tires for new Q7?

 
Old 11-07-2016, 06:01 AM
  #41  
NGN
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Originally Posted by NABS4 View Post
No, you can't use any 20" tire. You have to ensure that the overall diameter of the new tires is within a couple of percent of the original size. This tire size calculator recommends within 3%, but the closer to OEM diameter the better.
Tire Size Calculator - Tire & Wheel Plus Sizing
NABS4, Thank you that tip, that calculator is great. I want to go down in width compared to the OEM 20" (285/40/20), and I've narrowed my choices down to these two,

1) 275/45/20 (sidewall height: 123.75 mm, diameter variance: -1.18%)

2) 265/50/20 (sidewall height: 132.50 mm, diameter variance: 1.11%)

Leaning towards option 2 as that gives me more sidewall and a slightly narrower tire. Tire Rack does list 265/50/20 as a winter tire option implying it will fit?

Anyone have any thoughts one way or another, between these two options? As always, your inputs are greatly appreciated.

Thanks!
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Old 11-07-2016, 07:14 AM
  #42  
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Originally Posted by NGN View Post
NABS4, Thank you that tip, that calculator is great. I want to go down in width compared to the OEM 20" (285/40/20), and I've narrowed my choices down to these two,

1) 275/45/20 (sidewall height: 123.75 mm, diameter variance: -1.18%)

2) 265/50/20 (sidewall height: 132.50 mm, diameter variance: 1.11%)

Leaning towards option 2 as that gives me more sidewall and a slightly narrower tire. Tire Rack does list 265/50/20 as a winter tire option implying it will fit?

Anyone have any thoughts one way or another, between these two options? As always, your inputs are greatly appreciated.

Thanks!
I'm a big proponent of taller and narrower when it comes to winter tires, therefore I'd go with the 265/50s.
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Old 11-13-2016, 12:03 PM
  #43  
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I would go with 255/50/20 as it is within 0.3% of the stock 285/45 R20. So your actual speed at 60 MPH would be 59.8.

With the 265/50/20 it's a 1% difference so at 60 MPH you will actually be doing 60.6.
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Old 11-14-2016, 04:54 AM
  #44  
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Originally Posted by Lookout57 View Post
I would go with 255/50/20 as it is within 0.3% of the stock 285/45 R20. So your actual speed at 60 MPH would be 59.8.

With the 265/50/20 it's a 1% difference so at 60 MPH you will actually be doing 60.6.
You, Sir, are correct. Thanks for pointing that out. I'll see if 255/50/20 is available in the Nokian Hakka R2s. Placing order in the next couple of days.
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Old 11-16-2016, 09:40 AM
  #45  
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Turns out the 255/50/20 Nokians are out of stock nation-wide. Demand was higher than expected and Nokian sold out, new stock is expected to arrive around the first of the new year (according to tiresbyweb).

265/50/20 is available, and I know it will fit but just not as close to stock as the 255.

What would you do in my place, wait for the 255 or get the 265? I live in MA, there's probably a 50/50 chance of meaningful snow by early Jan.
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Old 11-16-2016, 11:07 AM
  #46  
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If you have your heart set in the Nokians then either go up size or wait.

Otherwise look for a 255/50/20 that is available.
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Old 11-16-2016, 11:11 AM
  #47  
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Originally Posted by Lookout57 View Post
If you have your heart set in the Nokians then either go up size or wait.

Otherwise look for a 255/50/20 that is available.
Yes, I want to stay with Nokian. With the 265/50/20, I get a little more sidewall (+ve?), but a little more width (-ve?) as well. And the greater speed variance, does that hurt the car in any way/cause more wear, or is it just an annoying measurement error?

Thanks for sharing your thoughts, Lookout.
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Old 11-16-2016, 12:46 PM
  #48  
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Just an announce that you are actually running faster than what the speedo says. Just remember that in any speed zones
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Old 11-16-2016, 07:25 PM
  #49  
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Originally Posted by NGN View Post
Yes, I want to stay with Nokian. With the 265/50/20, I get a little more sidewall (+ve?), but a little more width (-ve?) as well. And the greater speed variance, does that hurt the car in any way/cause more wear, or is it just an annoying measurement error?

Thanks for sharing your thoughts, Lookout.
I just picked up the 20" 265 50 Conti Winter Contacts - now I just need my Q7 to get here from Emden.... They are really wide. That sounds silly - TireRack shows the specs - so shouldn't be a surprise. But, in person, they are really wide. Very cool tread pattern, lots of sipes. Tread isn't as deep as Blizzak's that I have for other vehicles - but more blocks and therefore more sipes. The guy from TireRack said snow performance is very close to the Bilzzaks but wet performance is much better. I kinda can't wait to try them out. They are really wide. The 19s aren't THAT much narrower, so, probably not a big deal. But, these are really wide.......
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Old 11-17-2016, 05:19 PM
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I just bought Continental DWS06 275/45 20 $225 each
20X9.5 AVARUS AV15 TITANIUM 32 offset. $99 each
From Tirerack. $1580 total Just to use in winter months. Summer 21" came on the Q7. Not real blown away buy the look but will get the job done and great price








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