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      03-30-2014, 08:25 PM   #1
minmat11
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Front 245/35/19 on Non-M Z4 Fitment Help!

Hello all. This is my first post on the forums because even after hours of searching, I still cannot find a clear answer to my question. I'm buying a new set of wheels/tires for my Z.
Wheels:
TSW Mirabeau
F: 19x8.0 35mm
R: 19x9.5 42mm


Tires:
Yokohama Advan Neova AD08
F: 245/35/19
R: 265/30/19


Now here is my issue. My setting i was leaning towards was going to the exact same except the front tires were going to be 235/35/19, but my friend gave me two 245/35/19 tires for the front yesterday. So my question is the following: Will 245/35 work just fine in the front with a 19x8" wheel? will there be any rubbing? will i need spacers?Please help me out with this, otherwise I'm gonna need to buy all four tires and i thought i could save some money this way. Thanks in advance guys.

Last edited by minmat11; 03-30-2014 at 08:46 PM..
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      03-31-2014, 08:19 PM   #2
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anybody? help please.
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      03-31-2014, 08:32 PM   #3
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http://www.1010tires.com/Tools/Wheel-Offset-Calculator

Try this
Can't answer the increased width fitting the 8" rim question.
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      03-31-2014, 08:51 PM   #4
minmat11
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Quote:
Originally Posted by dbarton62 View Post
http://www.1010tires.com/Tools/Wheel-Offset-Calculator

Try this
Can't answer the increased width fitting the 8" rim question.
I already tried that and there's about a 3% difference in speed and diameter but I want somebody who has this same set up to tell me how it works for them. I think a 245 tire should work on a 8 inch wheel. I'm not sure though.
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      04-01-2014, 01:00 AM   #5
minmat11
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I called discount tires and they said that an 8 inch wide wheel will fit fine with a 245 tire.
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      04-01-2014, 01:55 AM   #6
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Yes, it will fit. That doesn't mean it's optimal in terms of contact patch or realizing the benefit of the extra rubber.

Case and point, I ran a 245 on an 8" wide wheel. Temps using a probe at the track showed the middle of the tire was doing all of the work (as did driving, since traction was awful). Putting that same tire on an 8.5" wide wheel? Even temps, good traction, and a better looking set-up. Stuffing the widest tire that will "fit" isn't always the best choice. And I think a 19" wheel with a shorter sidewall will just make issues worse.

Generally speaking I'd recommend a tire where the measured rim is the same as the rim you plan to run and do not run at the minimum of what "can fit".
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      04-01-2014, 07:58 AM   #7
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Quote:
Originally Posted by Finnegan View Post
Yes, it will fit. That doesn't mean it's optimal in terms of contact patch or realizing the benefit of the extra rubber.

Case and point, I ran a 245 on an 8" wide wheel. Temps using a probe at the track showed the middle of the tire was doing all of the work (as did driving, since traction was awful). Putting that same tire on an 8.5" wide wheel? Even temps, good traction, and a better looking set-up. Stuffing the widest tire that will "fit" isn't always the best choice. And I think a 19" wheel with a shorter sidewall will just make issues worse.

Generally speaking I'd recommend a tire where the measured rim is the same as the rim you plan to run and do not run at the minimum of what "can fit".
sounds good. thank you.
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