1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Larger wheels at last (I hope)

madba Feb 11, 2008

  1. madba

    madba New Member

    5
    0
    1
    Hi guys, a quick wheel question from someone with not a lot of experience in this area. I'm thinking of changing my embarrassing 195/65R15 wheels to a set of RS6's with 225/40R18's on them. I am aware that there will be a slight difference in the rolling circumferences and was wondering to what extent this will effect speedo readings???? I presume there a way to programme in the new tire size so as to keep the speed reading true???

    Thanks
     
  2. Carpy25

    Carpy25 Member

    279
    1
    16
  3. chris_20

    chris_20 Member

    707
    2
    16
    doesnt make any difference- well not tha i noticed anyway and i went from 15' to 19s
     
  4. 1wheelonly

    1wheelonly cabriolet VCDS Map User

    2,386
    112
    63
    It stays the same, what you go up in size on the alloys you go down on the wall / profile of the tyre.
    :icon_thumright:
     
  5. 1210tech

    1210tech Four Ring Fanatic Team Daytona Team V6 Audi A6 Audi Avant Owner Group S-line owners group

    696
    1
    18
    if you put the 15's next to the 18's with the tyres fitted you will notice that they will be quite a bit bigger but it shouldn't affect the speedo by much. when i upgraded mine from 15" to 18" it knocked the speedo out by about 4mph
     
  6. james0808

    james0808 Active Member

    3,548
    4
    36
    I went from 15's to 18's to 19's and my speedo got more accurate compared to my sat nav.
     
  7. madba

    madba New Member

    5
    0
    1
    cheers guys been very helpfull :icon_thumright:
     

Share This Page