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[christian_128i]

I am currently in the market for some rims and tires on my 128i e82. I am open to any suggestions with photos you would like to share. Please drop your specs as I would like as much insight as possible.

Currently, I'm running a square setup 18x8.5 all around with Michelin Pilot Sport Tires 235/35/R18 and I experience major rubbing on bumps in the rear. I currently have the m sport suspension and the car has not been lowered further.

I'm leaning towards 17s.

I would appreciate any type of advice or feedback

[bnace10]

It would help to know the offset of you current wheels.

OZ make quite a few 17" wheels with the correct specs for E82.

[tracer bullet]

https://apexwheels.com/fitment-guide...-fitment-guide

Look for "Square" options. It'll at least give you an idea of how to deal with offsets.

[N55e82Simon]

Originally Posted by christian_128i

I am currently in the market for some rims and tires on my 128i e82. I am open to any suggestions with photos you would like to share. Please drop your specs as I would like as much insight as possible.

Currently, I'm running a square setup 18x8.5 all around with Michelin Pilot Sport Tires 235/35/R18 and I experience major rubbing on bumps in the rear. I currently have the m sport suspension and the car has not been lowered further.

I'm leaning towards 17s.

I would appreciate any type of advice or feedback

You have a factory spec tire on a factory spec wheel size with factory spec suspension. You should not be rubbing unless your offset are wrong.

I think if anything wheel are a style choice so get a company that has the correct offset and pick a style you like.

If you don’t care about style lots of people do square setups with OEM wheels. And then you can rotate your tires etc. plus (opinions differ) possibly a better more predictable handling car.

Tons of thread on wheel and pictures online. Go get em!

[christian_128i]

Looking for anyone to give me some clarification on this.

I found a set of wheels that I would like to purchase.

They are the ESR CS 15 18x8.5, a square setup offset +30. With this offset will they be too wide in the rear?

As for tires what would be my best bet for sizing upfront and rear as I am looking to do a staggered setup?

[Eyeman]

There should be offset calculators around you can use. You enter stock setting and new setting and the calculator will tell you where the new wheels will sit (you should be able to google stock settings).

Those wheels will not work, the offset is too low/aggressive.

For our cars it's hard to fit a front wheel that's wider than 8", it will want to rub on either side. The optimal offset for an 8" wheel is around et+42. Anything wider than 225 tires are risky. Btw, many of use have 8.5" or even 9" front wheels, it just requires more work and general knowledge.

In the rear you could probably fit a 10" wheel if it had the proper offset (I guess around et+55). The main problem is finding wheels with that type offset. You'll probably have much better luck finding a 9" wide wheel with a 45 or preferably 50 offset. If you find a 50 offset you should be able to run a 255 tire, if not, 245 would be better.

Many get hung up on 18 or 19" wheels being the issue. That's not really the case, as you go with tall wheels you just go with lower profile tires. For sure the brand of tire you chose can make a difference. Toyos or Falkens tend to run the smallest.

Back in the day, tons looking for a specific look when with VMR wheels trying to find something like 18x8et40 front 18x9et45 or preferably 50 rear.

[christian_128i]

Just out of curiosity, I found another owner on Instagram running the same setup of ESR CS 15 wheels that are:

F- 18x8.5 +30
R- 18x9.5 +35

Tires:

F- 225/35/18
R-245/35/18

They mentioned their fenders were rolled but their car is also lowered whereas mine is not.

If you state that a +30 is too aggressive of a setup how were they able to achieve this setup?

[NorthernDancer]

18 inchers come standard on sport pkg Cdn 128's [263 OE BMW wheels]. The offset set required [The Tire Rack] is between 40-45. So, you do not need 17 inchers; you need 18" wheels with offset 40-45mm. My 18 inch 263's with size as you state above work perfect. Right now I don't know BMW 263 offset b/c mine are buried in my garage.

[tracer bullet]

Originally Posted by christian_128i

If you state that a +30 is too aggressive of a setup how were they able to achieve this setup?

Offset for our cars and most cars works backwards of how you'd think. A smaller number (30 vs 35) actually sticks out farther from the car towards the fender. So 30 is more aggressive than 35, meaning it's farther out.

If offset is too low (too HIGH of a number, let's say 50) a tire could hit the suspension. If offset is too high, or aggressive (a LOW number, let's say 25) you could hit the fender.

Higher offsets can be helped with spacers, a 45 offset with a 10mm spacer bumps things out to be a 35mm offset. So some square setups can be run this way since our fronts and rears normally have different offsets i.e. the factory wheels. A 25 can not be turned into a 35 though. Again keep in mind the #'s are backwards of what you think.

Offset is in millimeters by the way. Highly suggest looking up how offset works. Keep in mind our wheels run on the side of the centerline where a bigger number pulls the wheel into the car, a smaller number pushes it out.

[bnace10]

Originally Posted by christian_128i

They mentioned their fenders were rolled but their car is also lowered whereas mine is not.

If you state that a +30 is too aggressive of a setup how were they able to achieve this setup?

Lowering a car logically would cause more issues, but that isn't the case. On our cars (most cars with Macpherson suspension), when lowering a car, you gain negative camber, which allows the wheel to fit under the fender.

You'll notice this to the extreme with wheels that should never fit on an E82, but they do fit under the fender when super low or on air suspension.

[Eyeman]

Christian, we are just telling what fits under normal circumstances. Actually if you go to a real basic tire/wheel shop like a Costco or Tire Rack they would even say what we are saying will not work.

I'd bet you'd see what we mean by "fit" on the 30 offset IG guy if he shows you pictures.

We are still waiting to hear the offset of your current wheels, I'm sure it's imprinted inside the wheels. You could probably easily fix your rear rubbing by going to a shop that will increase your rear camber but you are asking for specs on what fits without crazy camber. Factory rear camber is pretty adjustable. You can gain a little front camber by "pulling your pins". Camber plates are needed to gain substantial camber.

My wheel and tire stats are listed in my signature. I bought such aggressive wheels because they are great wheels. I struggled with rear rubbing until I did the rear hub mod you can read about to move my wheels in around 7mm.

[Olgeezer1]

Stock staggered offset is 49 front and 52 rear. i went with Apex 18x8.5 et45 square with 225/40/18 which is really all the tire you need with a 128 and keeps overall diameter close to O.E. I liked the 8.5 width since it gives choice in tire width from 225 to 245. You'll never have a rubbing issue with this setup.

[tracer bullet]

Originally Posted by Olgeezer1

I liked the 8.5 width since it gives choice in tire width from 225 to 245. You'll never have a rubbing issue with this setup.

I don't mean to disagree with you specifically, but - 245mm is really pushing the limits. That's not a "never have a rubbing issue" kind of thing. It's more like there's at least a very good chance of it.

On a related note, different tires form different companies, even at identical "sizes" printed on their sidewalls, can vary in real life from each other. One brand's 245mm can be a lot bigger or smaller than another's.

[BMWCCA1]

Staggered 18-inch APEX on an unmodified 2013 128i Msport. No problems.

[Olgeezer1]

Originally Posted by tracer bullet

I don't mean to disagree with you specifically, but - 245mm is really pushing the limits. That's not a "never have a rubbing issue" kind of thing. It's more like there's at least a very good chance of it.

On a related note, different tires form different companies, even at identical "sizes" printed on their sidewalls, can vary in real life from each other. One brand's 245mm can be a lot bigger or smaller than another's.

"You'll never have a rubbing issue" refers to my setup - square 225's. 245's on the rear is a non-issue, on the front spacers will be needed.

[tracer bullet]

Cool, I was referring to 245mm on the front. 225 no problem, agreed.

[christian_128i]

Originally Posted by Eyeman

Christian, we are just telling what fits under normal circumstances. Actually if you go to a real basic tire/wheel shop like a Costco or Tire Rack they would even say what we are saying will not work.

I'd bet you'd see what we mean by "fit" on the 30 offset IG guy if he shows you pictures.

We are still waiting to hear the offset of your current wheels, I'm sure it's imprinted inside the wheels. You could probably easily fix your rear rubbing by going to a shop that will increase your rear camber but you are asking for specs on what fits without crazy camber. Factory rear camber is pretty adjustable. You can gain a little front camber by "pulling your pins". Camber plates are needed to gain substantial camber.

My wheel and tire stats are listed in my signature. I bought such aggressive wheels because they are great wheels. I struggled with rear rubbing until I did the rear hub mod you can read about to move my wheels in around 7mm.

Hi Eyeman,

I dug out my tires today and took a look at the offset of the rims and tires I currently have set up on my 1 series for the summer.

They are the style 269 replicas that are 18x8.5 square setup wrapped in Michelin Pilot Supersport tires.

The tire size is 235/40/18 square and the rim offset is 48mm also square.

I mainly experienced rubbing on large dips in the road at higher speeds and when people were in the car.

I have uploaded a photo for reference.

[tracer bullet]

Originally Posted by christian_128i

I mainly experienced rubbing on large dips in the road at higher speeds and when people were in the car.

Can you tell on the tires where they were rubbing? Might give you an idea of a fix.

I want to guess that they were hitting on the insides of the front tires, touching the suspension perhaps.

[christian_128i]

Originally Posted by tracer bullet

Can you tell on the tires where they were rubbing? Might give you an idea of a fix.

I want to guess that they were hitting on the insides of the front tires, touching the suspension perhaps.

When I changed them over for the winter last year, I didn't come across any wear on the inner tread of the tire, and as well no wear on any suspension components.

I feel like it was mainly from the rear where when the car dipped with the road it rubbed on the fender liner.

[tracer bullet]

Originally Posted by christian_128i

I feel like it was mainly from the rear where when the car dipped with the road it rubbed on the fender liner.

Interesting. I'd think the fronts would be at issue but yeah it can of course be the rear, you'd know where the noise was coming from. I didn't think that size tire would hit but it very well can, those wheels are indeed sticking out a bit farther than what would be considered perfect.

You might have to remind us what the question is again, sorry.

[christian_128i]

I was just wondering with the current setup I have now with the 235/40 square would it be better for me to go down to a 225 in the front either a 35 or 40 sidewall. And then add a spacer if nessasary.

For the rears could I keep it at a 235 and maybe lower the sidewall or increase it to a 245/35 in the rear?

I’m looking what would be the best tire setup I can get with the current rim setup I own.

[cerealwars]

I think the only way forward is to pull the wheels and find where it's rubbing. If you're hearing rubbing, you WILL find witness marks. Front or rear, inside or outside. Remediate from there.

Otherwise we're just throwing darts at a crystal ball, or something like that.