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Tire size for rear of Z3

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  • Tire size for rear of Z3

    Recently purchased an 02 Z3 2.5 Roadster...I need rear tires and wondered if a 275 35 18 would fit on the rear. The car has 18 x 8.5 wheels front, 18 x 9.5 rear. A couple of reasons I want to do this..one is asthetics...I like the look. The other reason is the speedometer is 3 to 4 mph fast at 30 to 70 mph. The current tire size on the rear is 255 35 18, 25 inches tall. Most of the 275 35 18 tires I have looked at are closer to 25.5 inches tall. I think the half inch in diameter would put the speedo closer to what it should be...Question is, will they fit?

  • #2
    Re: Tire size for rear of Z3

    You came to the right place to ask. We've tested all manner of wheel and tire sizes on a Z3 (non-M) and here are some pics:


    18x10" with 285/30/18 Hoosier, no spacer




    Front was an 18x9" with a 255/35/18, rear was the 18x10" with 285/30/18

    More test pics here: http://vorshlag.smugmug.com/Vorshlag...hams-Z3-Coupe/

    In short... yes, the 275 rear will fit on the rear, with the right wheel and backspacing. Probably on the stock rear wheel, too.
    Terry Fair - www.vorshlag.com
    2018 GT / S550 Dev + 2013 FR-S / 86 Dev + 2011 GT / S197 Dev + C4 Corvette Dev
    EVO X Dev + 2007 Z06 / C6 Dev + BMW E46 Dev + C5 Corvette Dev

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    • #3
      Re: Tire size for rear of Z3

      Thanks Terry...just what I was looking for...

      Phil O.

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