Remove stagger?

[paullfisher]

Hi! I have a 2004 330i ZHP and it's time for new tires. I read about people who removed the staggered wheel sizes. Do I just buy 2 more rear wheels and then use the rear tire size on the front? Are there fitment issues? Is there rubbing?

Thanks!

[cornercarver]

There have been a few threads on the topic... I'd suggest looking through the Wheel / Tire forums.

[Vas]

You need 2 rear wheels which are 8.5" wide and either 235 section width tires or 245 section width on all 4 corners.

[ZHPizza]

You need 2 rear wheels which are 8.5" wide and either 235 section width tires or 245 section width on all 4 corners.

*or 255 if you're not a nerd

[az3579]

*or 255 if you're not a nerd

This, if you don't want your speedometer readings to change.
255/35-18 is the factory diameter, so if you change widths, you will throw that speedo off.

Here's a calculator for handy reference:
https://www.willtheyfit.com/

[Reasoned1]

I have 4x 245/40R18's, and the speedo did change--it became more accurate. They're slightly over-sized and fill the wheel wells a little better.

[ZHPizza]

I have 4x 245/40R18's, and the speedo did change--it became more accurate. They're slightly over-sized and fill the wheel wells a little better.I noticed the same thing with that size - speedo is spot on. I'm on 255/35r18 now and the car is over reporting speed and distance traveled because of it.

[az3579]

Y'all can correct speedo readings using PA Soft.

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[danewilson77]

*or 255 if you're not a nerd:rofl

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[danewilson77]

I have 4x 245/40R18's, and the speedo did change--it became more accurate. They're slightly over-sized and fill the wheel wells a little better.I think I have 245/45/18 square.

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[fredo]

I think I have 245/45/18 square.

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My ZHP spare is 245/45/18 and it rubs on the front.

[ZHPizza]

Y'all can correct speedo readings using PA Soft.

Sent from my Pixel 3 using TapatalkI was not aware of that...thanks man. I just took the red car on a work trip and my odo showed ~1050 miles, while the actual distance (according to Google maps) was about 950. This is on the stock size 255/35r18.
I think I have 245/45/18 square.

Sent from my Note 9 using TapatalkYou have 245/40r18 square fyi. I remember looking at your fitment when I was trying to decide if that tire was too tall. 245/45 would be way too big on an e46.

[az3579]

I was not aware of that...thanks man. I just took the red car on a work trip and my odo showed ~1050 miles, while the actual distance (according to Google maps) was about 950. This is on the stock size 255/35r18.You have 245/40r18 square fyi. I remember looking at your fitment when I was trying to decide if that tire was too tall. 245/45 would be way too big on an e46.PM me if you want more info so I don't forget. I thought there was a thread for it but I have to look. If not I can send you what I have in my notes.

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[danewilson77]

You have 245/40r18 square fyi. I remember looking at your fitment when I was trying to decide if that tire was too tall. 245/45 would be way too big on an e46.

Thanks. Another 12 mm no bueno

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[Reasoned1]

You think? The famous Dane Wilson, BMW/ZHP/automotive expert isn’t sure about his tire size? Has the world gone crazy?

[johnrando]

I have 18x8.5 245/35 square. To me, one doesn't really need stagger, as that promotes understeer.

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[BMWCurves]

I was not aware of that...thanks man. I just took the red car on a work trip and my odo showed ~1050 miles, while the actual distance (according to Google maps) was about 950. This is on the stock size 255/35r18.You have 245/40r18 square fyi. I remember looking at your fitment when I was trying to decide if that tire was too tall. 245/45 would be way too big on an e46.

This is probably what BP is thinking of:

http://www.zhpmafia.com/forums/showthread.php?10659-DIY-Eliminate-Speedometer-Error-doityourself&highlight=speedometer

[fredo]

Just for fun, this is a pic of my spare tire 245 45 18 on the front.

35373

Compare with the factory size 225 40 R18.

35374