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Correct 19" Wheel/tyre offset

Discussion in 'Audi S4/A4/A4 Cab (B8 Chassis)' started by ScottishA4B9, Aug 28, 2013.

  1. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Hi All,

    What is the correct offset for 19" wheels for the B8?

    What is the best tyre size?

    I'm looking at getting some Genuine Black Edition wheels. Does anybody know the code for the alloys?

    And would the A5 or TT ones be the same as the A4 Black Edition ones and fit ok?

    Many Thanks
     
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  3. Soot1e

    Soot1e Member

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    Correct offset is ET43
    Tyres 255/35 x 19
    Part no 8KO 601 025 AR ( taken from eBay listing so advisable to confirm with Audi)
    A5 wheels have different offset but correct bore diameter, not 100% sure but seem to recall offset is ET32
    TT wheels have different offset and smaller bore diameter.
     
    #2 Soot1e, Aug 28, 2013
    Last edited: Aug 28, 2013
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  4. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Hmmm.....so A5 alloys would be the same size and its just the tyre offset that is different? (weird considering they are the same car underneath!)
     
  5. 5102 IA

    5102 IA Member

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    Just a word of caution here before anyone parts with any money for A5 alloys for their A4.
    A5 wheel offsets are generally lower (ie have more "poke") and whilst an A5 offset for the 19 rims is usually either et29 or et32 depending on the style of rim and sounds almost manageable (although personally I think any less than et33 starts to protrude too much on the front of an A4, particularly if the tyre has a thick rim protector) you need to consider that A5 19" rims usually have a width of 9" as oposed to the A4's 8.5 inch 19" rims - the only exception being the split y wheels on the earlier sports that had a higher off set. That half inch is an extre 6.7mm on either side of the rim, so effectively it would look like an 8.5 wheel with an offset of et29 - 6.7 ie et23... way too much poke on the front, you'd need RS4 wings/arches!
    When talking "et" figures you can't do this in isolation, you've got to consider the width too.

    I've been looking at this recently as I'm keen to fit the 20" A5 split 7 spokes (et 29 and 9") as I love the dish...and a challenge! I even bought a damaged one to size up, but despite all my efforts I cant see that the off set issue can be overcome and the same will be true with the 19"

    If only it were the other way around with a high off set it would be easily over come with spacers, but removing metal from the back of the wheel hub to increase the offset is a no no.

    Ian
     
    #4 5102 IA, Aug 28, 2013
    Last edited: Aug 28, 2013
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  6. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Spot on Ian!:thumbsup: Just the kind of advice I was after so thank you for that. I will bide my time then and wait and get some B8 Black Edition alloys then.
     
  7. 5102 IA

    5102 IA Member

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    No problem.... and if Ican find a way to make those 9" et29's fit I'll let you know!!!
     
  8. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Well I managed to buy 2 Genuine Audi A4 B8 Black Edition 19" ET43 8KO601025AR alloys so far. Just need to get another 2!
     
  9. johnnythepie

    johnnythepie Well-Known Member

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  10. Soot1e

    Soot1e Member

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    Was that the pair in Mansfield ?
     
  11. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Yes mate.
     
  12. Soot1e

    Soot1e Member

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    Thought so, had my eye on those as well!!!!
     
  13. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    Sorry dude. I had been looking since last year. Bloody hard to come by.
     
  14. ScottishA4B9

    ScottishA4B9 Well-Known Member
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    On the ET43, is the bore 66?
     
  15. Soot1e

    Soot1e Member

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    B8 wheels should have a bore of 66 with the offset of ET43
     
  16. 5102 IA

    5102 IA Member

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    Yes 66.1... and thats the same on the a5 too.
    OE wheels have a beveled edge around the bore too, which matches the corresponding bevel on the hub to ensure they sit centrally to minimise wobble.
     
  17. helal786

    helal786 New Member

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    Just to give you an idea ,im running 19 inch 245/35/19 ET35 with no issues.
     
  18. Adam Russell

    Adam Russell Member

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    i have created a thread for this but you guys seem to be right to ask,
    picked up a new set of rims yesterday (https://shops.audi.com/en_GB/web/zu...esign-royal-silver-9-j-x-19-8j0071499--w90-14) before i go and have the centre bored out anyone know if they will fit being:
    Rim size: 9 J x 19
    Wheel offset: 52 mm
    For tyre size 255/35 R19.

    they were made for a TTrs which as it turned out has smaller centre bore (which i didn't know before buying) so before i have them machined out do people know if they will 100% fit in the arches, i have an A4 B8 Quattro Sline on standard S line suspension. i know if i got spacers the ET would be reduced but i ideally don't want spacers.
    Thanks in advanced :)
     

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  19. johnnythepie

    johnnythepie Well-Known Member

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    Those are my fave alloys of all time. I had no idea that the centre bore was different.
     
  20. Adam Russell

    Adam Russell Member

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    can buy them if you like ;)
     
  21. johnnythepie

    johnnythepie Well-Known Member

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    lol. Sounds like too much grief!!!
     

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