Results 1 to 8 of 8

Thread: tire sizes

  1. #1

    Default tire sizes

    My '95 530i currently has 225/60R15 Uniroyal tires that I want to replace. What other tire sizes that are compatible with my 15x7 wheels? My car is not lowered. Do you think it is better for me to upgrade to 16s or 17s to have more options?

  2. #2
    Join Date
    Dec 2003
    Eastern Tennessee USi


    I went with 205/65r15 on mine, the 225 were unobtanium. You want to keep the diameter close to stock so the speedo stays somewhat accurate. Tire place told me they couldn't put them on because they are not specified for the car. I said you have nothing else available and they put them on anyway.

    Check this link, can compare all different sizes and wheel size options.
    Last edited by 632 Regal; 05-03-2018 at 04:59 PM.
    95 E34 530I V2.17
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  3. #3


    Thanks for the suggestion. The diameter and width of 205/65 are almost the same with 225/60.

  4. #4
    Join Date
    Jan 2004
    So.Calif ( L.A. Beach Area)

  5. #5
    Join Date
    May 2004
    Sydney, Australia


    yes you can go to a 17x8 wheel and run 235/45/17 tyres. Plenty of options available.

  6. #6


    15*2.54 = 38.1 centimeters tire hole diameter.
    (60% of 225 ) * 2 = 27 centimeters 2 heights of tire wall.
    Total wheel diameter = 65.1 centimeters.

    Calculate the new size satisfying the desired rim size in accordance to this figure +/- 5 millimeters.

    Additionally, this link provides a helpful chart relating rim width to a tire's:

    This snapshot shows the portion of interest: Name:  Screenshot_20180702-184301.jpg
Views: 39
Size:  50.3 KB
    Last edited by Rustam; 07-02-2018 at 05:46 PM.

    deleted air conditioning

  7. #7
    Join Date
    Dec 2004
    Sydney, Australia


    Your tyres are 627mm tall.

    15" tyres are most comfortable and durable/forgiving. They can go up and down gutters with less structural and cosmetic damage.

    16" tyres crispen the drive quite a bit. 17s as fitted to e34 M5 use 235/40x17 tyres (620mm dia). 16s certainly feel optimal, Only driven 2 stock e34s with 18s and both felt awful- but this may have been due to suspension troubles

    Oftentimes an important consideration is where snow-chains can be fitted. On e34, 8" rims don't leave enough space for them.

    But 17s are not what the e34 suspension was designed for, and a 235 doesn't protect the 8" rim very much. Going to 245/40x17 can even be done, but reduces room for error as diameter increases to 628mm. At this size, it is possible to get rub up front at full-lock and some strut extension combos, or if anything is slightly out of whack but if so, the alignment likely isn't as per M5 measurements (and also be sure you have the stiffer (750/M5) bushings or poly bushes (these are noisey) to prevent too much fore/aft slopping).

    Best feeling combo I've ever found (for a sporty feel) is a 16" 225x50x16 (3 series size) on light forged 7.5" rims. This is apparently 631mm diameter. When driving on normal roads, tram-lining is minimised, the car is most nimble, rim and tyre is light and ride is acceptable for normal people- important if you have Biisteins or another brand's sport shocks. Models after E34 were engineered with large rims/lower profile tyres and drive better with them. The suspensions have been put together to be structurally lighter (all aluminium arms), and with more pivots can deal with the greater amounts of leverage that larger/wider wheels exert over the car.
    Last edited by genphreak; 10-21-2018 at 10:08 AM.

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  8. #8
    Join Date
    Jan 2016
    Buenos Aires, Argentina


    i got 17x8 ET22 wheels up front, and 17x9 ET20 wheels in the back. 235/45-17 up front, 255/40-17 in the back. no rubbing, quite low in the front, but the back is high so not sure if they would rub if it was lower. hope that helps.

    E34 525i '88

Similar Threads

  1. wheel sizes
    By karl1171 in forum 5 Series BMW
    Replies: 4
    Last Post: 01-11-2007, 03:01 PM
  2. BMW wheel and tyre/tire geometry/sizes explained...
    By genphreak in forum 5 Series BMW
    Replies: 6
    Last Post: 12-16-2006, 03:47 PM
  3. Replies: 5
    Last Post: 08-22-2006, 10:37 AM
  4. Tire sizes for stock rims
    By jnmip in forum 5 Series BMW
    Replies: 3
    Last Post: 11-15-2005, 10:06 AM
  5. tire sizes
    By Hans Stuck in forum 5 Series BMW
    Replies: 6
    Last Post: 04-23-2004, 01:42 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts