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      01-01-2011, 11:56 AM   #26
UdubBadger
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Drives: '04 330i ZHP
Join Date: Dec 2007
Location: Chicago Burbs

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2004 BMW 330i ZHP  [9.50]
2011 135i  [7.46]
2008 328xi  [8.76]
Quote:
Originally Posted by 5erman View Post
It is so frustrating when everything in your post is wrong information.

I dont mean to insult your intelligence but if you think about it for 2 seconds 17 inch tires will NEVER be lighter than 18 inch tires given the same type/brand and equivelent ratios for the rolling radius of the car. ie-on my car
stock-245-40-18 28pounds per tire
19's 245/35-19 (same overall radius) 25

The overall diamter and circumfrence will be the same on 16, 17, 18, 19 etc-the only thing that changes is the amount of "wheel" taking up the circule v. sidewalls of the rubber...So it is absolutely impossible that more rubber would ever way less than less rubber. Again you have to take overcall cirmfrence into account as that is your comparison-so you cant compared 24540/17 with 245/40/18. Then in this case yes clearly the 17s way more but this would never happen since you need to keep rolling radius the same on a car.
all truth
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