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The Tire Rack's Tire & Wheel Forum
Use this forum to discuss anything in relation to wheels to tires to offsets.
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Old 01-28-2014, 10:21 PM   #1
AquilaBMW
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Wheel and Tire Sizing on E46 Vert

Hi There -

I am searching around trying to figure out wheel fitment for my car. I desperately want to replace the aftermarket wheels on the car.

I was able to acquire a set of 18" Beyern Mesh Wheels: http://www.beyernwheels.com/BMW_whee...n_typemesh.php

They were on a 128i which shares bore size and off set with the E46. These particular wheels are:

FRONT - 18 x 8.5 / ET 40 / 5 x 120 Bolt Pttrn / 72mm Hub

REAR - 18 x 9.5 / ET 45 / 5 x 120 Bolt Pttrn / 72mm Hub

I plan on reusing the 225 / 45 tires from the current rears on the front, but I am stumped on what to get on the rears. I read that 255 / 35 or so is the way to go, but there are potential under-steer issues with this kind of set up. I am also wondering if a 275 / 35 tire would work on the rears?

Any input would be appreciated.

Thanks!

Last edited by AquilaBMW; 01-28-2014 at 10:23 PM.
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Old 01-29-2014, 06:49 AM   #2
MacFady
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All of what you say above has been done. I wouldn't worry about under steer. 255/35 is standard size for the rear on ZHP's for example. 265 is fine too BTW. This is all over the forum, search, I just checked the thread to see if it was for real.
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Old 01-29-2014, 08:03 AM   #3
AquilaBMW
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Originally Posted by MacFady View Post
All of what you say above has been done. I wouldn't worry about under steer. 255/35 is standard size for the rear on ZHP's for example. 265 is fine too BTW. This is all over the forum, search, I just checked the thread to see if it was for real.
I've been checking, maybe using the wrong search parameters. I'll try again. Thanks for responding. I still have the question about the 275 in the rear though. I was just wondering as this would save me having to buy two new tires as I just happen to have these.

Last edited by AquilaBMW; 01-29-2014 at 08:04 AM.
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Old 01-29-2014, 11:57 AM   #4
MacFady
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I'm actually not sure about 275, 265 fine. You on stock suspension? 275 may require some fender work but you are ET45 so that helps.
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Old 01-29-2014, 12:04 PM   #5
bee-em-dougle-u
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Yes, it will understeer strongly at the limit, but it's really a non-issue if it's a street car that's driven moderately hard (i.e., never really getting close to the limit). If you're concerned about limit behavior/track driving, go with a square setup. Also, aftermarket adjustable anti-roll bars will help...if you go with the Turner/H&R bars and set the rear bar full stiff, it'll reduce the push somewhat.
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Old 01-29-2014, 12:12 PM   #6
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I recently installed a set of Style 197's on my 325 convertible with 235/40/18 up front and 255/35/18 on the rear. I would seriously doubt that you could fit 275/35 on the rear but offset in critical. Why push it to the limit? I am very happy with my stance and it handles well.
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Old 01-29-2014, 04:53 PM   #7
Solidjake
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Thread moved to the correct section. Learn to read the forum rule please.
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Old 01-29-2014, 04:59 PM   #8
AquilaBMW
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Originally Posted by MacFady View Post
I'm actually not sure about 275, 265 fine. You on stock suspension? 275 may require some fender work but you are ET45 so that helps.
If i could fit them, it would save me money as I wouldn't need to buy new tires. I have a pair of fairly new Potenzas in the garage I was hoping to use. I will try it out - I check a fitment guide and it is pretty close.

Quote:
Originally Posted by bee-em-dougle-u View Post
Yes, it will understeer strongly at the limit, but it's really a non-issue if it's a street car that's driven moderately hard (i.e., never really getting close to the limit). If you're concerned about limit behavior/track driving, go with a square setup. Also, aftermarket adjustable anti-roll bars will help...if you go with the Turner/H&R bars and set the rear bar full stiff, it'll reduce the push somewhat.
Thanks! You are completely right. This is NOT going to be tracked or driven to the ragged edge. It is a DD, that will spend a fair amount of time sulking in the garage or doing freeway trips with one - maybe two people in it.

Quote:
Originally Posted by tcphoto View Post
I recently installed a set of Style 197's on my 325 convertible with 235/40/18 up front and 255/35/18 on the rear. I would seriously doubt that you could fit 275/35 on the rear but offset in critical. Why push it to the limit? I am very happy with my stance and it handles well.
From what I can see, the off set here would be to my disadvantage with these wheels and a 275 rear. But... for shits and giggles, i am going to mount one up and see how it fits.

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Thread moved to the correct section. Learn to read the forum rule please.
Gotcha! Thanks!
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