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The Tire Rack's Tire & Wheel Forum
Use this forum to discuss anything in relation to wheels to tires to offsets.
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Old 04-15-2013, 06:25 PM   #1
Welke
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Tire Size For a Mild Stretch

Looking at a set of wheels they are 18"x8" up fron + 35 and rear are 18"x9" + 35. What tire sizes would give me a mild stretch on these rims?
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Old 04-15-2013, 06:26 PM   #2
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BTW I have an 02 330ci
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Old 04-15-2013, 06:45 PM   #3
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On my 18x9 i have 225/40 and theres a bit of stretch. For the 18x8 I think 215/40 would work fine.
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Old 04-15-2013, 06:46 PM   #4
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Do you have any pictures?
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Old 04-15-2013, 09:45 PM   #5
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I'll take some for you tomorrow morning

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Old 04-15-2013, 09:46 PM   #6
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Thank man
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Old 04-16-2013, 09:36 AM   #7
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Okay, I have a dumb question. What does it mean to "stretch" a tire? What exactly is being stretched?
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Old 04-16-2013, 10:31 AM   #8
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Essentially, you stretch an undersized tire over a wider wheel

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Old 04-16-2013, 12:11 PM   #9
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Quote:
Originally Posted by hacksawmark View Post
Okay, I have a dumb question. What does it mean to "stretch" a tire? What exactly is being stretched?
Basically putting a tire that is narrower than recommended specs for a specific wheel width. IE: Putting a 215/40/18 on an 18x9.5 wheel. This will taper the sidewalls in, and the tire will be stretched over the wheel. It's not really recommended by tire manufacturers. People do it all the time though.
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Old 04-16-2013, 12:29 PM   #10
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Basically putting a tire that is narrower than recommended specs for a specific wheel width. IE: Putting a 215/40/18 on an 18x9.5 wheel. This will taper the sidewalls in, and the tire will be stretched over the wheel. It's not really recommended by tire manufacturers. People do it all the time though.
Okay so now I'll move on from a dumb to a silly question; Why would anyone want to do that? Would it be for clearance issues?
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Old 04-16-2013, 12:31 PM   #11
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Yes. Some people like the look, but in my opinion, you should not stretch tires unless you have to. This means if you plan on running wheels that are more aggressive than what's recommended, you probably need to stretch the tires to keep them from rubbing on the fenders.
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