2nd Gen R56 Cooper S Tire size question

Discussion in '2nd Generation: 2007+ R55 through R61' started by miniwop, Oct 22, 2012.

  1. miniwop

    miniwop New Member

    Oct 6, 2012
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    2010 MCS.
    I'd like to install a slightly wider tire without getting a taller sidewall. I am looking at the Hancock ventus V12 in a 205-50/17. My car is not lowered, will this size rub anywhere inside or outside?
    Thanks for your time.

    PS: Trying to get rid of my brand new Pirelli Euforia RF. Not having any luck, I've got them posted every where. Any suggestions?
     
  2. Nathan

    Nathan Founder

    Mar 30, 2009
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    215/45-17
     
  3. Jason Montague

    Jason Montague New Member
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    :cornut: Me Too, Me Too! 215 45 R17:Thumbsup:

    Jason
     
  4. miniwop

    miniwop New Member

    Oct 6, 2012
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    Ok but that is a taller tire, isn't it?
     
  5. Steve

    Steve Administrator
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    Apr 23, 2009
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    No, it isn't.

    Click here and scroll down to "A tyre size calculator" and you can compare them...and any other sizes you'd like to compare.
     
  6. BSTINS

    BSTINS New Member

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    I'm also running 215/45-17
     
  7. mini_racer

    mini_racer Well-Known Member

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    #7 mini_racer, Oct 22, 2012
    Last edited: Oct 23, 2012
    Let's do the math for sidewall dimensions:
    Original 205/45 sidewall is: 205 * .45 = 92.25mm
    New size 215/45 sidewall is: 215 * .45 = 96.75mm

    So are the 215s taller? Yes
    How much higher will the car be? 96.75 - 92.25 = 4.5mm
    How much taller are the 215s? (96.75 - 92.25) * 2 = 9mm

    And the 205/50s mentioned in the OP are significantly taller and not wider at all. Use the same math to get a 10.25mm higher car stance and a 20.5mm taller tire. I would expect these will rub in the back with any extra weight in the car or even just going over bumps.

    And miniwop I thought I saw some RFs for sale on one of these forums for like '$100 less than the Tirerack price'. The thing to remember is that many if not most on these forums hate the RFs so the value to us is very low. Maybe try Craigslist for some different exposure. Good Luck.
     
  8. ScottinBend

    ScottinBend Space Cowboy
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    It is going to be tough to get a wider tire with the stock wheels/suspension w/o some clearance issues. I too run the 215/45 tires as the width is a bit more (1/2") and with the taller (1/4") tire it fills the wheel well real nice.
     
  9. mini_racer

    mini_racer Well-Known Member

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    Likewise here, for the street I run 215/45-17s, I like this size much better than the 205/45s.
     
  10. Nathan

    Nathan Founder

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    Y'all have 1st gen cars, the OP has a 2nd gen, there is bit more tire room there. 215/45's fit perfectly from what I've seen.
     
  11. Steve

    Steve Administrator
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    Just to be clear, when I said the 215/45 is not a taller tire I assumed you meant relative to the 205/50 you mentioned in your original post.

    205/50 sidewall is 102.5mm
    215/45 sidewall is 96.75mm
     
  12. anuppercasej

    anuppercasej New Member

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    I have 215/45's on my R56S and they do Klok a lot beefier than the OEM 205/45's. I didn't like the 215's too much at first but now I do. No figment issues with the 215's either.
     
  13. anuppercasej

    anuppercasej New Member

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    Look, not Klok!
     
  14. miniwop

    miniwop New Member

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    Thank you, you are all correct. And yes those tires for sale are mine. They are on CL too. I am just going to have to keep discounting them.
    Thanks again gents.
     
  15. oldvet53

    oldvet53 New Member

    Oct 21, 2012
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    What would be the optimum size tires for a R53 MCS running the stock 16" white factory wheels that I could put on and not have any rubbing issues?
     
  16. CarlB

    CarlB Active Member

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    I has 225/45/16 Toyo R-1s on my R-53. They are nice and fat. The discussion about tire height is accurate, but if you look at the tire manufacturers specifications you will find different brands of tire are actually different dimensions. Some brands are very different.
     
  17. Steve

    Steve Administrator
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    Apr 23, 2009
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    All true, though the differences I saw when I was searching were very slight for same size tires. I saw bigger differences between tires of different types, like comparing ultra performance vs all season, etc, in the same size.

    I also use 225/45/16 on my R50, though one set is on 7.5" and the other on 8" wide wheels. :Thumbsup: They look and work great, though the effect and importance of wheel offset (and/or spacers) grows with width. :yesnod:
     
  18. NKAWTG

    NKAWTG New Member

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    205/50-17s

    I put 205/50/17 on my Mini Clubman. I had no problems with rubbing or interference. It is indeed taller than the 205/45/17 but I wanted more rubber between me and the road to help improve ride quality and give me more absordsum for hitting pot holes. I also like the way it fills out the wheel well opening.
     

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  19. oldbrokenwind

    oldbrokenwind Active Member

    Oct 18, 2012
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    My '07 R56 uses 225/45R17 BF Goodrich Dragstrip radials on the strip. Not a lot of clearance from the shock absorber, but it does clear, and without spacers. No problem with height, only width is close.

    As mentioned already, different manufacturers will have slightly different measurements for any given tire size. Suggest checking online with the mfgr for specific dimensions. Tire Rack has a good comparison screen, if they carry what you're interested in.
     
  20. oldvet53

    oldvet53 New Member

    Oct 21, 2012
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    Mine had 195/55/16's on when I got it so that is what went back on in Kumho's ECTSCA SPT Run Flats. The Dealer paid for them and installation,Nitrogen fill and 4 wheel alignment.
     

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