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RSTT alloys

Erf Feb 28, 2013

  1. Erf

    Erf Registered User

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    Hi Guys,

    Might be a dafte question, but...

    I've just agreed to but a set of RSTT's that were being sold in teh classified section, but just noticed the tyre sizes are different. Two are 225 40 18 and the other two are 225 45 18. Is that going to cause me an issue?

    Thanks.
     
    Last edited: Feb 28, 2013
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  3. Jay A3

    Jay A3 #because Racecar

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    Both sizes look the same to me
     
  4. hades-

    hades- Well-Known Member VCDS Map User

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    yep and to me
     
  5. Sidey

    Sidey Registered User

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    [​IMG]
     
  6. Vex182

    Vex182 1x S3 and 3x Fiestas.

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    Typo in the sizes?
     
  7. Jay A3

    Jay A3 #because Racecar

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    i wonder if he meant 235 40 18 or 225 45 18?
     
  8. Erf

    Erf Registered User

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    Sorry typo! 225 40 18 and 225 45 18!!!!

    Apologies!
     
  9. S3-Si

    S3-Si Registered User

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    Its been a long day, but I don't see any typo?
     
  10. Erf

    Erf Registered User

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    I edited the original post to correct the typo.
     
  11. Jay A3

    Jay A3 #because Racecar

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    Now all our posts look out of place!
     
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  13. Routledge

    Routledge Wind Deflector Trend-setter

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    I thought this.

    It doesn't matter if they have different tyre sizes on the front to the back.. Just as long as they match on the axles.
     
  14. Alex C

    Alex C Well-Known Member VCDS Map User

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    that is a ~10cm difference in rolling circumference which is quite a bit. I wouldn't run that.
     
  15. Erf

    Erf Registered User

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    Buggery...
     
  16. .Ben.

    .Ben. Registered User

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    Buy some part-worns from eBay in the correct sizes?
     
  17. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator

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    different rolling radius from front to rear will cause issues with ESP and haldex... the speed sensors will see the one set of wheels going faster than the others and potentially misinterpret this as wheelspin..

    <tuffty/>
     
  18. Erf

    Erf Registered User

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    Thanks for all the replies guys. Will stick to stock 17" Avus alloys and get them refurbed.
     
  19. Daniel M

    Daniel M Registered User

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    Just a quick one related to this, will having say two 225/45/17 tyres and two 205/45/17 tyres cause any problems?
     
  20. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator

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    If the rolling radius is different then yes...

    <tuffty/>
     
  21. Daniel M

    Daniel M Registered User

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    Ah might need some new tyres then as Ive just discovered my rears are wider than the fronts?! (done before I bought the car). Also what would be the correct width tyre for a 17'' RSTT? 225 or 205?
     
  22. Alex C

    Alex C Well-Known Member VCDS Map User

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    standard s3 rims are 17" 7.5" wide. -- 225/45
     

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