Going Up a Tire Size 255/45R20 to 265/45R20

[auntrout]

I have a 2017 Q5 3.0T which came with the Bridgestone H/P Dueler Sport 255/45R20 tires. I'll be needing to replace these tires soon and was thinking about going with the Continental Extreme Contact but going with the 265/45R20. Has anyone tried this or know if this will cause any interference issues with suspension components. The 265 will be 0.3 inch larger in diameter which I do not think would be an issue other than my speedo calibration being a little off. Thanks

[DiscoDan]

I have a 2017 Q5 3.0T which came with the Bridgestone H/P Dueler Sport 255/45R20 tires. I'll be needing to replace these tires soon and was thinking about going with the Continental Extreme Contact but going with the 265/45R20. Has anyone tried this or know if this will cause any interference issues with suspension components. The 265 will be 0.3 inch larger in diameter which I do not think would be an issue other than my speedo calibration being a little off. Thanks

There are a few ppl here who have moved up to this exact size on B8's. You shouldn't have any issues but I'd take their opinion.

I'm going with a 265 as well on my B9 in the next few months (this I know for sure will fit).

[greasykid]

I have a 2017 Q5 3.0T which came with the Bridgestone H/P Dueler Sport 255/45R20 tires. I'll be needing to replace these tires soon and was thinking about going with the Continental Extreme Contact but going with the 265/45R20. Has anyone tried this or know if this will cause any interference issues with suspension components. The 265 will be 0.3 inch larger in diameter which I do not think would be an issue other than my speedo calibration being a little off. Thanks

Have oem size CONTI DWS-06. Great tire. Recommend.

[bigjamesdean]

Have oem size CONTI DWS-06. Great tire. Recommend.

pretty sure you will need a small spacer to clear the front control arm


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[SQ57]

I had, for 4 years now, check previous threads, great sets for 400$ in 265/40/21. Atturro(on my 2rd now),Lexani LX20...
Cheers,
Bob


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[KillerQuattro]

I currently run Continental DWS06 265/45/20 mounted on 20x9 et29 wheels, without spacers. OP you'll be fine with zero fitment issues.

[auntrout]

Have oem size CONTI DWS-06. Great tire. Recommend.

I've read some great reviews on the CONTI DWS-06. I have no complaints with the H/P Duelers that came on the vehicle but prefer to go with an All -Season tire. Any thoughts on the type of improvement I might see with the Continental Extreme Contact, less road noise, better mileage, ...? Thanks

[SQive]

The DWS06 has incredible grip for such a high-mileage tire. Normally, when I see high-mileage, all-season tires I think "no grip in the corners." Not so with the DWS06. I'm on my second set and love 'em.

[auntrout]

I currently run Continental DWS06 265/45/20 mounted on 20x9 et29 wheels, without spacers. OP you'll be fine with zero fitment issues.

My 2017 Q5 has the 20 inch 5 arm design wheels which were options from the factory. The wheels are 20x8.5 with a 33mm offset. Will the difference in width and offset between my wheels and your wheels make any difference. Thanks

[KillerQuattro]

My 2017 Q5 has the 20 inch 5 arm design wheels which were options from the factory. The wheels are 20x8.5 with a 33mm offset. Will the difference in width and offset between my wheels and your wheels make any difference. Thanks

Slightly different, but you will be fine.

https://www.willtheyfit.com/index.ph...8-5&offset2=33

[auntrout]

The DWS06 has incredible grip for such a high-mileage tire. Normally, when I see high-mileage, all-season tires I think "no grip in the corners." Not so with the DWS06. I'm on my second set and love 'em.

I was surprised to see that the DWS06's are cheaper than the Bridgestone H/P Dueler Sport's. Makes my decision even easier.

[auntrout]

Slightly different, but you will be fine.

https://www.willtheyfit.com/index.ph...8-5&offset2=33

Killer, thanks for the Willtheyfit link. Awesome source for information. Looks like ideally if I go up to the 265/45 I should also go up to a 9 inch wide rim.

[KillerQuattro]

Ideally yes, a 9" width would be great, but I think you will be fine. There are plenty of people running even 295/40/20 on 20x9 wheels and are fine. Granted, those are guys with Chargers, or Mustangs, but it has definitely been done without much issue.

[MSq5]

I was surprised to see that the DWS06's are cheaper than the Bridgestone H/P Dueler Sport's. Make my decision even easier.

All-season tires, even top level, are often less expensive than pure dedicated summer rubber. I'm running the same Bridgestone H/P Dueler Sport 20" summer tires on the OEM summer tire package. They are now at 36,000 and will probably make 40,000.

I am looking to replace them with all-season tires, so this thread is relevant to me. The H/P Dueler Sports have been fantastic tires. Amazing grip. I would probably stay with them given the warm climate year round here in South Mississippi. However, I do on occasion need to take the car far enough north that I may encounter some icy conditions. Right now, I can't do that. Thus, I'm considering searching for the best, stickiest all season tires that could still be safe in rarely encountered driving conditions under 40 degrees F.

Please follow up and let us know how the DWS06 Contis work for you. I have Ross-Tech VCDS, so I think I may be able to go in and adjust the speedo for correct reading.

Having accurate wheel speed sensor readings going to the ECU and the TCU may be important beyond just an inaccurate speedo. But, I really don't know.

Please update us.

[buggravy]

I have Ross-Tech VCDS, so I think I may be able to go in and adjust the speedo for correct reading.

Having accurate wheel speed sensor readings going to the ECU and the TCU may be important beyond just an inaccurate speedo. But, I really don't know.

Please update us.

FWIW, when comparing the speedo to gps speed on stock size tires the speedo was always a couple mph under. With the 295s (so same .3" increase in diameter as 265/45) it's either dead on, or ever so slightly under.

[DiscoDan]

FWIW, when comparing the speedo to gps speed on stock size tires the speedo was always a couple mph under. With the 295s (so same .3" increase in diameter as 265/45) it's either dead on, or ever so slightly under.

I'm moving up from 255/45 to 265/45 in the near future.

Does anyone know if you can modify the tire size and/or speedo calibration in VCDS? If so, where is it at in VCDS?

[MSq5]

I'm moving up from 255/45 to 265/45 in the near future.

Does anyone know if you can modify the tire size and/or speedo calibration in VCDS? If so, where is it at in VCDS?

Upon reflection, it may be that Ross-Tech locks out modification of this value in VCDS because of laws about odometer tampering. I just don't know.

[Zerokyo2]

I currently run Continental DWS06 265/45/20 mounted on 20x9 et29 wheels, without spacers. OP you'll be fine with zero fitment issues.

I was hoping to run Continental DWS06 or Michelin Pilot Spot AS 265/45/20 mounted on 20x9 et35. With your experience, do you think i will have issues with hitting the control arm on the inside? On another thread, i know someone posted that they did 20x10 et35 with 265/45/20 tires without spacers and cleared fine too. Just want to be extra careful. Thanks for your help!

[Zerokyo2]

Noting that i have a 2015 Q5

[SQive]

I was hoping to run Continental DWS06 or Michelin Pilot Spot AS 265/45/20 mounted on 20x9 et35. With your experience, do you think i will have issues with hitting the control arm on the inside? On another thread, i know someone posted that they did 20x10 et35 with 265/45/20 tires without spacers and cleared fine too. Just want to be extra careful. Thanks for your help!

You shouldn't have any trouble, noting that some tires are slightly bigger than their advertised size. Given that the upper spindle arm is an arc, if the tires are too big, small spacers will get you by until the next set, or just until you've worn a little tread off of them. That's how close some tires can be. At ET+35, you may want some spacers anyway, like 10mm front and 15mm rear. It would look good and you'd have no more concerns about tire fitment.

[Zerokyo2]

You shouldn't have any trouble, noting that some tires are slightly bigger than their advertised size. Given that the upper spindle arm is an arc, if the tires are too big, small spacers will get you by until the next set, or just until you've worn a little tread off of them. That's how close some tires can be. At ET+35, you may want some spacers anyway, like 10mm front and 15mm rear. It would look good and you'd have no more concerns about tire fitment.

Thanks SQive! The plan is to get spacers at some point. But wanted to drive around without for a bit to see exactly what sized spacers I wanted. This is a daily and definitely getting out of the mod scene. Main reason for have these wheels is to run winter tires on my stock 18’s. So I do not plan to lower at all either.

Maybe I’ll just bite the bullet and get the 265/45 and test fit them first since I’m in no rush til after winter is over.

[JasonJ]

I just ordered a set of Michelin Pilot Sport A/S 3+ in 265/45/20 and will be putting them on the end of this month.
I'll let you know how it feels.
I'll have a slightly taller tire, and that will give me some added pot-hole protection here in the CT/NY Rt. 95 corridor!

Jason
New York

[Pittdawg]

I just ordered a set of Michelin Pilot Sport A/S 3+ in 265/45/20 and will be putting them on the end of this month.
I'll let you know how it feels.
I'll have a slightly taller tire, and that will give me some added pot-hole protection here in the CT/NY Rt. 95 corridor!

Jason
New York

I'm assuming you are on stock wheels? Let me know if it fits, it looks way to close to call on my stockers with 255/45/20s.

[JasonJ]

I am on stock wheels...8.5" x 20" rims.

Actually, I brought my car in last week to put on the dedicated snow tires because we were supposed to get hit with a big snowstorm.
Well, the dealership put on somebody else's snow tires by mistake; and I drove out of there with 275/45/20 Blizzak's on my stock rims!
No problems whatsoever in terms of clearance or fitment! It does ride a bit higher now; but nothing else.
So, I really doubt the 265/45/20 Michelin 3+ will be a problem!!

Jason
New York
(Running on Q7 snow tires for the moment!)

[pattyt]

20x9 et40 with 265/45/20 DWS06 checking in here. I run a 15 mm spacer up front and 20 mm at the back.
No issues at all.

[Pittdawg]

I am on stock wheels...8.5" x 20" rims.

Actually, I brought my car in last week to put on the dedicated snow tires because we were supposed to get hit with a big snowstorm.
Well, the dealership put on somebody else's snow tires by mistake; and I drove out of there with 275/45/20 Blizzak's on my stock rims!
No problems whatsoever in terms of clearance or fitment! It does ride a bit higher now; but nothing else.
So, I really doubt the 265/45/20 Michelin 3+ will be a problem!!

Jason
New York
(Running on Q7 snow tires for the moment!)

Wow good to know!