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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Run Flat Tires, Rim Swap



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      05-03-2010, 07:05 PM   #1
jeamps01
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Run Flat Tires, Rim Swap

I wanna keep the RFTs and just swap rims, would this void my lease, same rolling diameter? The spokesman said no but that he was going to double check and make sure. So my next question is how do I know what wheels these RFT would fit, i figured that as long as I keep the same dimensions 18 x 8 as the OEM wheels i shouldnt have a problem but apparently not i looked into these Motegi MR 118:
http://www.tirerack.com/wheels/Wheel...All&sort=Brand

or these Drag Wheels:
http://www.discounttiredirect.com/di...8.5&vid=016694

It's a lease so im looking for fair priced black multispoked wheels as you can see...please help, new to this shit and ordering everything this weekend thanks
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      05-03-2010, 09:17 PM   #2
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is there any truth to the dealer bs about RFT's needing wheels with a special bead area?
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      05-03-2010, 09:46 PM   #3
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The answer to that should be looked for on the tire manufacturer instead of the widely knoledgeable SA:

Bridgestone: (http://www.bridgestone.co.za/content.asp?id=344)

Quote:
While the bead shape configuration itself is unchanged, so that the Bridgestone RFT is compatible with conventional rims, the bead wire is wider and reinforced, ensuring a secure fit on the rim even at zero pressure, and special bead filler with low heat generation is used.
Michelin: (http://www.michelinman.ca/difference...opressure.html)

Quote:
Special bead design helps tires stay securely seated on conventional rims even at zero-pressure
But you must be aware that the extra-stiffness of the sidewall may result in more damage over a pothole than on regular non RFT tires.
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      05-03-2010, 11:34 PM   #4
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ok great so it seems that michelin and bridgestone tires will fit any conventional rim, but my plan was to keep the RFT that bmw will be supplying me with. any of you know which tires come with the 335xi? i searched the website and i couldn't find it anywhere
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      05-03-2010, 11:43 PM   #5
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and it was one of the SA at an autoshop that told me this after I asked for a tire swap he said that RFT won't fit any rim even if both rims are the same dimensions...sounded kinda odd to me 2
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      05-04-2010, 12:35 AM   #6
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since this is a lease i would take the tires off and save them for when you return the car. buy some non rft's for the duration of the lease.
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      05-04-2010, 12:38 AM   #7
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tire swap costs 150 and i thought that they replace they RFTs as part of the warranty? so it made more sense to just buy wheels that these tires will fit on...
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      05-04-2010, 01:03 AM   #8
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I had a set of O.Z. Ultraleggera with the OEM Bridgestone RFT for over a year and a half and haven't had a single problem with it. The guys at the dealership loved them, and never said anything about the wheels. My car is also a lease, and they don't really care if you change the wheels, as long as you return your car to stock when your lease ends.
Hope this helps.
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      05-04-2010, 01:15 AM   #9
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yea it does thanks, were the rims same dimensions as the OEM, did u mess with the suspension at all?
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      05-04-2010, 01:20 AM   #10
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Quote:
Originally Posted by jeamps01 View Post
i thought that they replace they RFTs as part of the warranty?
i have never leased but if they give you free tires thats pretty cool. doesn't work that way when you buy one, that's for sure.
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      05-04-2010, 01:22 AM   #11
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Quote:
Originally Posted by jeamps01 View Post
yea it does thanks, were the rims same dimensions as the OEM, did u mess with the suspension at all?
The rims were 18x8 up front and 18x9 in the back with stock sport suspension. I just sold them today, but you can check this link for some pictures: http://www.e90post.com/forums/showth...28#post7234328
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      05-04-2010, 01:24 AM   #12
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i have never leased but if they give you free tires thats pretty cool. doesn't work that way when you buy one, that's for sure.
Well they will replace your tires if you get the optional tire&wheel warranty, not your 5 year/50,000mile warranty.
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      05-04-2010, 01:32 AM   #13
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that looked real good i thought stock was 18 x 8 all around? or is that only in the front how u stated? if it is 18 x 8 all around howd u manage to put the RFTs on the back...did u stretch the tires?
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      05-04-2010, 01:47 AM   #14
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Quote:
Originally Posted by jeamps01 View Post
that looked real good i thought stock was 18 x 8 all around? or is that only in the front how u stated? if it is 18 x 8 all around howd u manage to put the RFTs on the back...did u stretch the tires?
Well since you have an XI you have a square set up (18x8 all around). Mine is rwd and we have a staggered set up. (18x8F 18x8.5R) so 18x9 was fine.
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