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Sedans BMW 5-Series BMW 5-Series Sedans
12657 messages, Last post on Nov 05, 2009 at 6:14 PM
You are in the BMW 5-Series Forum. Your Hosts are pat & karens
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Replying to: bdkinnh (Oct 02, 2007 6:26 pm)
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Replying to: kyfdx (Oct 03, 2007 6:47 am) Best Regards, Shipo
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Replying to: shipo (Oct 03, 2007 6:55 am)  That said, he already has a set of winter tires in the stock 535 size.. I'd just get wheels for them, and be done with it... Unless the 16" tires are appreciably narrower, it isn't going to make much difference, anyway.. I'd double check the 16" thing with a phone call.. The stock size on the 535 is 225/50-17.. That is for the base model, not sport. Not sure I'd want to downgrade from that. Even the 528i comes with 17" standard. regards, kyfdx visiting host
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Replying to: kyfdx (Oct 03, 2007 7:03 am) Best Regards, Shipo
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Replying to: shipo (Oct 03, 2007 7:06 am)
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Replying to: kyfdx (Oct 03, 2007 7:08 am)  Best Regards, Shipo |
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Replying to: kyfdx (Oct 03, 2007 7:03 am) I'm trying to find out how much better the traction would be between 16 and 17.. probably tough to measure. Since I already have the 17s it makes sense to go with those, but since I'll have the car for many years I don't want to have worse traction every year just to save a few bucks on the tires this year. >"I'd double check the 16" thing with a phone call.." BMW lists 16 inch tires on the accessory page for the 2008 535i (star spoke 115), but you're right - better safe than sorry.
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Replying to: bdkinnh (Oct 03, 2007 7:54 am) Assuming the same section width (i.e. 225), probably impossible to measure. I've never seen any compelling evidence that proves that a winter tire of any given width and diameter will perform better if the wheel is smaller. Best Regards, Shipo
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Replying to: shipo (Oct 03, 2007 1:03 pm)  So, given that the 16 and 17 have the same width (therefore the same traction as well), would there be any major reason to go with the 16 other than cost?
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Replying to: bdkinnh (Oct 04, 2007 8:50 am) If you have bad potholes, or your spouse is maybe not as careful as you would like, then you do have a small amount of increased protection from pothole damage. But, traction/winter handling improvements would probably be too small to calculate. If you stick with 17" wheels, you'll have a lot more choices... Personally, I like my car to look just as good in the winter as the rest of the year, which is why I don't like to downsize... (but, that's just me). regards, kyfdx visiting host EDIT: Some people think that extra 1/2" of sidewall lets the tire flex more, and find better tracton in deep snow.. Not sure that makes sense to me, but there you have it.
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