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04-10-2008, 10:21 PM | #1 |
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19 inch tire question
I asked this question on another site but did not get much useful information so I thought I would try here...
So as it turns out I may need some new tires sooner than I had planned on so after a little reading I have a question to ask you guys: Stock size as you will all remember is: Front 225 45 18 (Diameter 25.97 in) Rear 255 40 18 (Diameter 26.03 in) The tire size that seems most popular for the 19 inch wheels, and the ones I have ae: Front 245 35 19 - this is (Diameter differnce of -0.85% [diameter 25.75 in]) Rear 275 30 19 - this is (Diameter differnce of +2.08% [diameter 25.49 in]) Wouldn't this tire size be better given that it will give more sidewall and be slightly bigger, but still within the allowable range of difference (often quoted as 3%) Front 245 40 19 (Diameter differnce of +2.78% [diameter 26.71 in]) Rear 275 35 19 (Diameter differnce of +2.04% [diameter 26.57 in]) |
04-11-2008, 01:14 AM | #2 |
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Go with 245/35/19 & 275/30/19. I made a mistake of putting 245/40/19 & 275/35/19 tires on my Z4M and swapped them out after 1 week. From a visual point, that set-up looks very ghetto on a small car like the Z4. From a handling perspective, the car's handling just felt weird, and lost even more nimbleness.
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04-11-2008, 05:42 AM | #3 | |
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07-31-2008, 08:50 AM | #4 |
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How about 235's in the front? I'm running 245/35/19 today and at full turn the tires rub. Will 235 work or will they be too thin? I would really like to get rid of the rubbing..
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09-09-2008, 04:14 PM | #5 | |
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A 245/40R19 would most likely rub a bit or at the very least be too close for comfort imho...so your best bet is to stick with the 245/35R19 you have. The 275/30R19 difference shown above is typed in wrong it should read -2.08%. So your best bet for the rear (in keeping with the front diff) would be 285/30R19 (-1.15%)...plus it will fill out the wheel well a little bit better. Not sure about these tire sizes on aftermarket wheels, but this is what I am running on M3 19" Competition wheels. Z4Kevo |
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09-09-2008, 07:52 PM | #6 | |
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I am running OEM CSL rims so the rear width should be the same as your CSL rears. You are running 285/30R19 on your rears? I was told that 285 was too wide for the rear rims and would probably rub as well - but I guess this isn't the case? |
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