New Ytest
Sign out
Bimmerpost
Login
BMW E39 5-Series Forum | 5Post.com
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read  
Go Back   BMW E39 5-Series Forum | 5Post.com > BIMMERPOST Universal Forums > Classic BMW (Pre-2005 Models)

Post Reply
 
Thread Tools Search this Thread
      02-02-2023, 11:21 PM   #1
Jmakkb
Registered
4
Rep
1
Posts

 
Drives: 2003 Bmw 530I
Join Date: Feb 2023
Location: Des Moines,iowa

iTrader: (0)

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
Appreciate 0
      02-03-2023, 07:22 AM   #2
BMWCCA1
BMW Owner Since 1971
2236
Rep
1,393
Posts

 
Drives: 1964 700 Sport Cabriolet
Join Date: Apr 2014
Location: Central Virginia

iTrader: (2)

Garage List
2013 BMW 128i  [10.00]
You obviously have the wrong wheels for your car. Do you even know the brand/offset/width of what you put on it?
Appreciate 0
      02-03-2023, 08:52 AM   #3
Wolf 335
Brigadier General
Wolf 335's Avatar
Canada
2339
Rep
3,538
Posts

 
Drives: 2007 E92 335i
Join Date: Aug 2012
Location: GTA - Greater Toronto Area

iTrader: (0)

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: ?
Appreciate 0
      02-04-2023, 10:44 AM   #4
pbonsalb
Lieutenant General
5178
Rep
10,553
Posts

 
Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

iTrader: (4)

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.
Appreciate 0
      02-05-2023, 12:41 PM   #5
Eyeman
Colonel
Eyeman's Avatar
119
Rep
2,033
Posts

 
Drives: 2008 135 blk, blk, step
Join Date: Jan 2009
Location: Atlanta, GA

iTrader: (0)

Garage List
For sure spacers will push the wheel out away from the strut.
__________________
Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
Appreciate 0
      02-05-2023, 02:23 PM   #6
NorthernDancer
Colonel
843
Rep
2,266
Posts

 
Drives: 08 Sedona 128 & 06 330xiT 6MT
Join Date: Apr 2011
Location: Ottawa On Canada

iTrader: (3)

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.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:38 AM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST