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02-22-2008, 04:05 PM | #1 |
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245/45R18's fit on rear stock 18's?
Will a tire 245/45R18 fit on the rear stock 18" rims on the 135i? I know they will fit on the wheel, but is the slightly larger tire ok?
Trying to avoid buying new wheels. The hankook W300's don't come in 245/35R18 http://www.hankooktireusa.com/product/W300.pdf edit: they don't make the right tire size for the fronts either, i give up... |
02-22-2008, 05:31 PM | #2 |
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John, go with 225x40-18 (or 225x45) at all four corners with the stock wheels, it'll work fine. 245x45 is too tall a tire for the rear.
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02-22-2008, 07:16 PM | #3 | |
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It will most certainly fit. Yes, his speedo will be a little off, his acceleration a bit slower...but these are winter tires, so performance isn't really an issue. If you're on a budget, and like the tires, there's no reason you can't go with them. |
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02-22-2008, 07:41 PM | #4 |
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I would disagree with you there, PrematureApex. The diameter delta between a 245x35-18, the OE size, and a 245x45-18 is +1.6 inches. Not a trivial amount. From experience with another model BMW I can state that increasing tire diameter by over one inch could lead to interference with the wheel well or fender liner.
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02-22-2008, 07:46 PM | #5 | |
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02-22-2008, 08:49 PM | #6 | |
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same experience here. especially on the front the way the spring perch is(especially on smaller BMWs) you have very little room for increased diameter. I had an 88 325ix where you had less than a 1/4" |
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02-23-2008, 08:31 AM | #7 | |
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That's a lot to deal with. Further, I of course would assume he'd be sizing the fronts up as well. But anything over 1" makes me nervous. |
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02-23-2008, 08:36 AM | #8 |
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Agreed.
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