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2010 2011 BMW 5 Series Forum F10 BIMMERPOST Universal Forums Classic BMW (Pre-2005 Models) Rim advice
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      02-03-2023, 12:21 AM   #1
Jmakkb
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Question Rim advice

Long story short.. I got a 530I and a set of 18 in rims and the tires rub against the struts really bad so was wondering if i could put 225/55R18 tires on the rims to eliminate the being to big and rubbing against the struts and causing any issues or what I'd need to do to put the rims on without issues.. Smaller tires? Spacers? Hoping for advice
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      02-03-2023, 08:22 AM   #2
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You obviously have the wrong wheels for your car. Do you even know the brand/offset/width of what you put on it?
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      02-03-2023, 09:52 AM   #3
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Information you provided is too vague.

What is the

front wheel widt: ?
front wheel offset: ?
front tire size: ?

rear wheel width: ?
rear wheel offset: ?
rear tire size: ?
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      02-04-2023, 11:44 AM   #4
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Look at the small letter/number combination on the back of your stock wheels. That is the offset. Might be ET17 or something like that (less than EF20) for an E39 530i. You probably installed wheels not meant for the E39 that have much more offset, like ET40, moving the wheels nearly an inch inwards. The good news is that spacers will move the wheel out. ET40 with a 20mm spacer is like an ET20, which may be closer to what you want.

The next problem is tire aspect ratio. As you increase the wheel diameter you need to decrease the adjective ratio, assuming the same tire width (aspect ratio is percentage of tire width), in order to maintain the same overall tire circumference so the tire and wheel combination fit properly. For 18” tires you probably want to a 40 series rather than a 55 series, but since aspect ratio is related to width, you could alternatively run skinnier tires than stock and maybe end up with something workable. Too wide can also lead to problems, but you did not specify the width that is causing problems.

The good news is that google can help you figure this out. Google 18” wheels and tire sizes for BMW E39 and start reading and learning.

Beware also that the E39 has a funny hub size and some wheels not made for the E39 require hub bore adapters. I don’t like them and recommend buying wheels that fit without adapters. Spacers are fine, but if adapters were required I would look at different wheels.
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      02-05-2023, 01:41 PM   #5
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For sure spacers will push the wheel out away from the strut.
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      02-05-2023, 03:23 PM   #6
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Just to note, most BMW wheels I've seen label the offset as ISXX. My 128 on 17 inch staggered wheels are IS47 and IS49.
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      09-17-2024, 10:22 AM   #7
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Hi there new to this page don’t understand where I would post this
I have a BMW X3E
I currently have 20 inch rims
But I do have a set of 19 inch rims that I took off of my 328D
I was wondering if I could use those rims for winter tires
Would it effect anything to do with the drivetrain? Or all wheel drive ?
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      09-17-2024, 01:13 PM   #8
John in VA
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Quote:
Originally Posted by bmwfan9 View Post
Hi there new to this page don’t understand where I would post this
I have a BMW X3E
I currently have 20 inch rims
But I do have a set of 19 inch rims that I took off of my 328D
I was wondering if I could use those rims for winter tires
Would it effect anything to do with the drivetrain? Or all wheel drive ?

You should post your question as a stand-alone post vs. hooking onto someone else's. Try the wheel/tire section or the X3 section. Good luck!

https://x3.xbimmers.com/forums/index.php
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