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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Help me with Wheel Size!



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      02-24-2006, 02:56 PM   #1
karbosshack
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Help me with Wheel Size!

So I've decided on some wheels I am going to buy, it's just a matter of size now. Unfortunately the wheels I want don't come in 19"s

They come in 18x8 and 20x8.5

Do I go too small or too big!?!?
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      02-24-2006, 03:01 PM   #2
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18's for sure! 20's look dope, but only certain designs with a nice drop IMO. Plus with 18's you'll more than likely have better performance (depending on your rim choice) than with the 20's.

What kind of rims are they?

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      02-24-2006, 04:37 PM   #3
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hey karboshack, thought you were going with the maido st5's..anyways which wheels you lookin at now?
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      02-24-2006, 05:21 PM   #4
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I really wanted the Maido's, but I couldn't find a set that weren't staggered, and buying them new from superbuytires is too expensive :-/

I have a personal taste for chrome, so I think I'm going to go with the same rims I had on my first car, called Armano Dunamis.

Here's a pic of the rims on a Nissan 350z. Thanks for the advice HRC. Will the 18" rims fill up the well though, or will it leave a big gap? I don't really want to drop my car.

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      02-24-2006, 05:49 PM   #5
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20 inch will fill the gap better, here is natureboy's e90 with 20s.

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      02-24-2006, 06:20 PM   #6
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Wow, just too much rim for my taste. I think I'll go with 18's in that case. Do you guys have a recommendation on the biggest/perfect size to go for tires?

I was told 225/40/18 all around (I don't want staggered) Is that what everybody seems to get?
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      02-25-2006, 12:10 AM   #7
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check this guy out...he's been wanting to sell for ages...too bad they werent staggered otherwise i woulda gone with them too..
http://www.e90post.com/forums/showthread.php?t=12193
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      02-25-2006, 01:29 AM   #8
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damn. Chrome wheels are ugly on E90. Sorry for saying that, but it's true.
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      02-25-2006, 01:45 PM   #9
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Quote:
check this guy out...he's been wanting to sell for ages...too bad they werent staggered otherwise i woulda gone with them too..
Yea...something about those on the car that just makes me cringe, even though they look very similar to the Maido's.

And to those that don't like chrome, that's fine, I think silver rims look terrible on an e90 personally, so to each his own.
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      02-25-2006, 04:51 PM   #10
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go with the 18's and if u ever wanna fill the gap up more, get a drop on the car
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      02-26-2006, 01:42 AM   #11
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Thanks.

If you drop the car, does it void the warranty? How's the ride from dropping, and how much does it cost including all the parts and labor? (Does the dealer do it?) Sorry about so many questions, I've never dropped a car before :-/
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      02-26-2006, 02:25 AM   #12
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Ok, so the wheels are available with 20,25,35,and 40 offsets. I have NO idea what that means. maybe somebody can teach me a thing or two about tires and wheels here.

Couple questions to help me go comfortably and order these:

1. What exactly are "offsets" Which do I get?
2. I want the same size all around, 18x8 because I don't believe they come in 19's. What, if any "spacers" should I get?
3. What size tire do you guys suggest? (ie what's the widest and tallest I can get without risking any rubbing)
4. Above post about dropping the car.

Thanks to everybody that has responded so far and anybody else that takes time to help me out! This board is amazing!!!!
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      02-26-2006, 05:40 PM   #13
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Anybody? Help? Please?
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      02-26-2006, 06:05 PM   #14
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http://www.tirerack.com/wheels/tech/...jsp?techid=101


I think out of those options 35 would be your best bet. Good luck hope it helps.
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      02-26-2006, 06:38 PM   #15
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Karbosshack...I personally would go with 20's although I'm a little biased since I live in So Cal where having big wheels is pretty much the norm. I also dont have to worry about adverse types of weather that may play into performance decisions (i.e. snow, sleet, and whatever else mother nature drops on the less fortunate areas of the country). OK, off to one of your questions...The offset of a wheel (once mounted) either closes or widens the gap between the outside edge of the wheel and the fender body line. The important thing to remember is that you need to allow for the suspension to travel up inside the fender or quarter panel. If your wheels are set too far out, your tire will rub the leading edge of the fender when the suspension travels up, causing damage. Some people will roll up the inside lip of the quarter panel or fender so that they can extend the wheels as far as possible without rubbing. This gives the car a very "aggressive" looking stance. NOTE: Rolling/shaving the lip should only be done by someone who knows what they are doing and has the proper tools. You could do some really bonehead damage to your $40K+ BMW if not careful. Furthermore, wheel spacers are placed in between the hub and wheel to push the wheel even further out. So in reality if you get a wheel with the correct offset you dont need wheel spacers. Obviously, most wheel company's would rather not design a separate wheel for each type of car so they have standards which will fit most applications. Wheel spacers allow you to custom fit your wheel if you want to close the gap some more. I attached a diagram describing wheel offset. You seem to be set on the 18x8 all around for your car. I attached a pic of my car. I have 19x9.5 with +28 offset in the rear. To get that set up with an 18x8 wheel you would need about +10mm offset. So you would need to get the 18x8 with +20 offset and buy some 10mm wheels spacers. I dont know what KB is thinking about saying 35 offset will be good. That would actually push the wheels futher in than stock, that's pretty lame. I guess it all comes down to personal preference. the 18x8 with 20 offset will work for the front as well. As for the tires, 225 is kindy skinny but then again you are only going with 8inch wheels so it will be fine. I hope this helps and is not too confusing.
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      02-26-2006, 08:38 PM   #16
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Wow, gallo, two things:

1. Your car looks GREAT. I live in Arizona, even hotter than Cali. Big wheels are the norm here too.

2. Thanks for all the information. Basically I want that look that you have on your car, in regards to how far they come out and those wide tires. I just feel that 20" wheels may look too big on the car, and the picture that the other guy posted earlier doesn't help (maybe it's just because I don't like those rims).

With your tires that are 255/35, do you experience any rubbing?? I don't believe that Armano's offer the rims in 19's because I haven't seen any website offer them in that size, but I am going to go to Discount Tire tomorrow and ask them.
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      02-26-2006, 09:43 PM   #17
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I actually have 275/30 in the back and no rubbing. And no rubbing on the front with the 255. I could probably go a little wider even on both. 20's are big but if its done right they look good. If you have the sport package 20's would looks good although if not the car sits way too high, you'd have to lower it (in my opinion). You can lower it for like $400-500. The springs are only about 275 and then installation. Any reputable wheel shop or such can let you know where to go. There's gotta be a lot of places in phoenix if that's where you're at.

heres a st of 20's staggered that are massive and would work
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT
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      02-26-2006, 10:06 PM   #18
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woah dude you are running 255 front? can you post more picture of your car.
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      02-26-2006, 11:37 PM   #19
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Quote:
Originally Posted by karbosshack
I really wanted the Maido's, but I couldn't find a set that weren't staggered, and buying them new from superbuytires is too expensive :-/

I have a personal taste for chrome, so I think I'm going to go with the same rims I had on my first car, called Armano Dunamis.

Here's a pic of the rims on a Nissan 350z. Thanks for the advice HRC. Will the 18" rims fill up the well though, or will it leave a big gap? I don't really want to drop my car.

Wow...nice looking rims ...Do not forget add spiner to it fit your taste
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      02-27-2006, 12:39 AM   #20
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Sure thing...
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      02-27-2006, 01:24 AM   #21
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Wow...nice looking rims ...Do not forget add spiner to it fit your taste
Is that supposed to be sarcastic? If so, nobody forced you to leave a comment. You could simply have said I don't like the rims, or simply not said anything at all. Are you stereotyping me by saying just because I like chrome rims means I'll like spinners? Cause I don't.

If you were serious and you really do like spinners....I don't like them. Unless you're ridin' an upscale car (like a 7 series or s-class) I think it looks too poserish. Oh and thanks for the compliment.
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      02-27-2006, 08:43 AM   #22
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thegallo I was recommending the 35 offset based on what Tire Racks recommendations are and what this site says is the stock configuration:

Wheel offset calculator courtesy of E90Post.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car. As a reference the E90 Sedan (sport) comes standard with
Front: 18x8 +34 offset with 225/40/18 <> Rear: 18x8.5 +37 offset 255/35/18.

Your car seems to prove them wrong, looks great dude. Every rim that you configure through Tire Rack gives you an offset around 35 give or take. My question is whats the best offset to get if you dont want to roll up or use spacers but you want that fat lip look?




http://www.tirerack.com/servlet/Call...filterSpecial=
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