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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 08-27-2013, 01:56 PM   #1
2002topasblueM3
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Tire sizes... Again

Hey guys I've been looking into running a squared setup on my m3. I've read up on it but haven't quite found a concrete answer. My question is, can I run 275/35/18 tires on stock 18x9 rims all the way around? My car is slightly lowered and I can adjust my camber if I have to. I'm just wondering if this is possible with the factory wheels and offsets. I've read posts that say yes and others that say no, I'm really trying to figure out if its possible or not.

Would I need to roll my fenders more, or are the rear rims with those sizes too wide to clear? Sorry if this has been discussed before but I haven't been able to find a clear answer.

Again, I'm going to be mounting 275/35/18 tires on the factory 18x9 rims all the way around. I'm almost positive the rears will work just fine I'm mostly concerned with front clearance.

Thanks guys let me know what you think.

Last edited by 2002topasblueM3; 08-27-2013 at 01:58 PM.
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Old 08-27-2013, 02:06 PM   #2
WDE46
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If they're factory wheels, why wouldn't you get factory sizes? Tire diameter and all that jazz...
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Old 08-27-2013, 02:23 PM   #3
2002topasblueM3
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If they're factory wheels, why wouldn't you get factory sizes? Tire diameter and all that jazz...
Well I can't exactly do all factory sizes if I'm running 9 inch wide wheels up front and in the back. I'd have to at least run a 245 on a 9 inch wide rim. I'm just trying to run 275s because its a personal preference; reduction of understeer and the look of it obviously.
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Old 08-27-2013, 02:38 PM   #4
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Oh I misread. So you have rears on the front now for a square setup...I'm stupid.
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Old 08-27-2013, 04:18 PM   #5
2002topasblueM3
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Oh I misread. So you have rears on the front now for a square setup...I'm stupid.
Haha yea I tried to make it as clear as I could. It's all good we all make mistakes.
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Old 08-27-2013, 05:39 PM   #6
2002topasblueM3
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Bump... Need some info soon any advice is appreciated
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Old 08-27-2013, 05:44 PM   #7
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Post this in the M3 and wheel and tire forum also, you might get more responses!
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Old 08-27-2013, 06:11 PM   #8
2002topasblueM3
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I think I'm just going to play it safe and run 245/40/18s up front and 275/35/18s in the back. I know for a fact the 245s will be alright in the front so I'll save the squared setup for the next time I need tires
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Old 08-28-2013, 11:13 AM   #9
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Originally Posted by 2002topasblueM3 View Post
I think I'm just going to play it safe and run 245/40/18s up front and 275/35/18s in the back. I know for a fact the 245s will be alright in the front so I'll save the squared setup for the next time I need tires
Good choice as 275 on the front borders on the insane unless you want your car to drive like a truck! 275 on the rear is also stretching it unless it's purely cosmetics you are trying to achieve? Why do you need such big tires?Big tires on the front is NOT the way to reduce understeer! Try some suspension changes to correct the handling not bigger tires. Wide tires and adjusting camber to make them fit will most likely destroy the tires. Radical dude!
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Old 08-28-2013, 09:55 PM   #10
2002topasblueM3
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Good choice as 275 on the front borders on the insane unless you want your car to drive like a truck! 275 on the rear is also stretching it unless it's purely cosmetics you are trying to achieve? Why do you need such big tires?Big tires on the front is NOT the way to reduce understeer! Try some suspension changes to correct the handling not bigger tires. Wide tires and adjusting camber to make them fit will most likely destroy the tires. Radical dude!
Well technically running bigger tires up front in the squared setup, you actually do reduce the understeer because of the extra traction that you gain up front. I have coilovers and a practical front and rear camber for daily use so upgrading suspension wont really be necessary. And as for the rear, 275s fit fine, in fact, I've seen people put 285s and even 295s on 11 inch rims on the rear (insane and stupid, I know), so 275s are easily accomplished and many people run the 245 front 275 rear setup on their e46 m3's so it shouldn't be a problem. But, if for some reason I run into issues, I will be sure to let you know and you can rub it in my face and bask in the "I told you so" moment haha thanks for the input man. The tires are coming tomorrow and I'll have them mounted soon so I'll let you guys know how it goes
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Old 08-29-2013, 08:03 AM   #11
JohnJoe1011
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I have Yoko Neova ADV08 285/30 18 on all 4 corners with d_force rims with spacers in all 4 corners and they don't rub. And my 330ci has custom suspension by Vorshlag.com

These are my track tires for the street i am using Style 44 rims with 245/40 17 Falken.

Thanks - John

330ci Former Vorshlag
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Old 08-29-2013, 01:21 PM   #12
2002topasblueM3
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Originally Posted by JohnJoe1011 View Post
I have Yoko Neova ADV08 285/30 18 on all 4 corners with d_force rims with spacers in all 4 corners and they don't rub. And my 330ci has custom suspension by Vorshlag.com

These are my track tires for the street i am using Style 44 rims with 245/40 17 Falken.

Thanks - John

330ci Former Vorshlag
Nice setup! I'm just trying to stay practical for daily use and I'm also using stock rims without spacers or fender modification so I'm pretty limited with choices. But I think the 245/275 setup will work just fine for me.
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