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  1. #1
    Veteran Member Three Rings mike0819's Avatar
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    Oct 29 2016
    AZ Member #
    384172
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    nz

    Fitting 265 40 19 tyres on standard 8.5 rim?

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    Hi please help, I want fit 265 40 19 tyres to the standard 8.5 rim, on rim guard, they say maximum width for 8.5 is 255, if I fit 265 will it have a negative effect on handling?

    I still want to stay on 19 inch due to ride comfort and cheaper tyre price. What difference in performance I can get from upgrade from 255 to 265, better grip? Thanks

  2. #2
    Veteran Member Four Rings
    Join Date
    Mar 14 2008
    AZ Member #
    26437
    My Garage
    Audi S5, Porsche 718 Spyder, Audi RS5
    Location
    MA

    Technically it can be made to fit, but it is not optimal. The sidewalls will have to be bowed inwards and this will lower your contact patch as a result. 265 needs a 9 or 9.5" wheel for optimal contact patch and performance. An 8.5" wheel is best suited to a 245/255 tire.

    It is all a matter of what you can do vs. what you should do. There is no real reason to put a 265 tire on an 8.5 inch wheel. There is nothing to be gained by doing this.
    Current Fleet: Porsche 718 Spyder * Audi S5 Sportback * Audi RS5 Sportback
    On order: Audi RSQ8 Performance

  3. #3
    Veteran Member Three Rings mike0819's Avatar
    Join Date
    Oct 29 2016
    AZ Member #
    384172
    Location
    nz

    Quote Originally Posted by VVG View Post
    Technically it can be made to fit, but it is not optimal. The sidewalls will have to be bowed inwards and this will lower your contact patch as a result. 265 needs a 9 or 9.5" wheel for optimal contact patch and performance. An 8.5" wheel is best suited to a 245/255 tire.

    It is all a matter of what you can do vs. what you should do. There is no real reason to put a 265 tire on an 8.5 inch wheel. There is nothing to be gained by doing this.
    Thanks for your help, I will look for some 9.5 rim, is it worth the upgrade from 255 to 265 tyres? Will I get a lot more better traction cause it's wider?

  4. #4
    Veteran Member Four Rings
    Join Date
    Mar 14 2008
    AZ Member #
    26437
    My Garage
    Audi S5, Porsche 718 Spyder, Audi RS5
    Location
    MA

    Quote Originally Posted by mike0819 View Post
    Thanks for your help, I will look for some 9.5 rim, is it worth the upgrade from 255 to 265 tyres? Will I get a lot more better traction cause it's wider?
    I assuming you are talking about a 6 series car with an 8.5" wheel in question. I felt that a 255 tire on this car was a little small overall. I run 265/35/20 and feel the car just feels more solidly planted on the road. So, yes, I think a 265 tire is the way to go. My wife's previous B8 S-line A4 had 255 tires.
    Current Fleet: Porsche 718 Spyder * Audi S5 Sportback * Audi RS5 Sportback
    On order: Audi RSQ8 Performance

  5. #5
    Senior Member Two Rings Laserrs's Avatar
    Join Date
    Oct 24 2014
    AZ Member #
    290505
    Location
    Cincinnati

    Get better 255/40/19's.
    2014 A6 3.0t Prem Plus Ice Silver/Black 19" sport Vag Com

  6. #6
    Veteran Member Three Rings mike0819's Avatar
    Join Date
    Oct 29 2016
    AZ Member #
    384172
    Location
    nz

    Hi could you please help, I just bought the s7 with factory 19 inch rim, the tyre worn out, so I decided either go with factory 255 40 19 or go wider 265 40 19, just want more grip
    Quote Originally Posted by VVG View Post
    Technically it can be made to fit, but it is not optimal. The sidewalls will have to be bowed inwards and this will lower your contact patch as a result. 265 needs a 9 or 9.5" wheel for optimal contact patch and performance. An 8.5" wheel is best suited to a 245/255 tire.

    It is all a matter of what you can do vs. what you should do. There is no real reason to put a 265 tire on an 8.5 inch wheel. There is nothing to be gained by doing this.
    Sent from my EVR-AL00 using Audizine mobile app

  7. #7
    Veteran Member Three Rings mike0819's Avatar
    Join Date
    Oct 29 2016
    AZ Member #
    384172
    Location
    nz

    Or you recommend just stick with 255, I be going to stage 1 tune soon, hope the 255 can handle the power just fine. If 265 give more grip I be definitely upgrading
    Quote Originally Posted by VVG View Post
    Technically it can be made to fit, but it is not optimal. The sidewalls will have to be bowed inwards and this will lower your contact patch as a result. 265 needs a 9 or 9.5" wheel for optimal contact patch and performance. An 8.5" wheel is best suited to a 245/255 tire.

    It is all a matter of what you can do vs. what you should do. There is no real reason to put a 265 tire on an 8.5 inch wheel. There is nothing to be gained by doing this.
    Sent from my EVR-AL00 using Audizine mobile app

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