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      09-23-2015, 01:10 PM   #1
kzflags
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Is anyone running a 255 front?

As the title says, is anyone running a 255 front and lowered without rubbing? I fit a 245/35/19 up front, lowered no prob.

switching to 18s and a beefier tire..square setup on 18x8.5 et 35.

winter is coming!!!!!!!!!!!!
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      09-23-2015, 02:00 PM   #2
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Quote:
Originally Posted by kzflags View Post
As the title says, is anyone running a 255 front and lowered without rubbing? I fit a 245/35/19 up front, lowered no prob.

switching to 18s and a beefier tire..square setup on 18x8.5 et 35.

winter is coming!!!!!!!!!!!!
I run a 255 up front half the time when I do my tire rotations. Also, it helps on the track because when you go wider up front and narrow in the rear it reduces the amount of understeer.
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      09-23-2015, 04:39 PM   #3
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Quote:
Originally Posted by kzflags View Post
As the title says, is anyone running a 255 front and lowered without rubbing? I fit a 245/35/19 up front, lowered no prob.

switching to 18s and a beefier tire..square setup on 18x8.5 et 35.

winter is coming!!!!!!!!!!!!
I have a 8.5 front with +28 offest ,and I only rub at full lock

If you're adding an extra 10mm to your tire size, it may rub a little, especially if it's a wider tire like a MPSS
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      09-23-2015, 04:46 PM   #4
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Quote:
Originally Posted by ///WORK-F36 View Post
I have a 8.5 front with +28 offest ,and I only rub at full lock

If you're adding an extra 10mm to your tire size, it may rub a little, especially if it's a wider tire like a MPSS
youre running a 255 up front with that wheel?
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      09-23-2015, 04:46 PM   #5
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Quote:
Originally Posted by kzflags View Post
youre running a 255 up front with that wheel?
no, a 245 and it rubs on full lockout
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      09-23-2015, 04:47 PM   #6
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Quote:
Originally Posted by Polo08816 View Post
I run a 255 up front half the time when I do my tire rotations. Also, it helps on the track because when you go wider up front and narrow in the rear it reduces the amount of understeer.
youre lowered too? I think I should be ok...
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      09-23-2015, 04:48 PM   #7
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Quote:
Originally Posted by kzflags View Post
youre lowered too? I think I should be ok...
Yeah, I'm lowered. If youre stock height you should be ok
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      09-23-2015, 04:48 PM   #8
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Quote:
Originally Posted by ///WORK-F36 View Post
no, a 245 and it rubs on full lockout
so the 255 will probably rub... your offsets are more aggressive than what im gonna run though. meh.
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      09-23-2015, 04:49 PM   #9
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Quote:
Originally Posted by kzflags View Post
so the 255 will probably rub... your offsets are more aggressive than what im gonna run though. meh.
My offsets are 7mm more aggressive, but the tread width is 10mm wider if you go 255....depends on the tire you're gonna run too. I'm running V12 Hankooks, but MPSS will run much wider
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      09-23-2015, 08:27 PM   #10
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I test fit factory 400M 18x8.5 rears w/ 255/40-18 conti rfts on the front and it clears the strut, fender, and fender liners with a 12mm spacer (which puts the offset at effectively a et35) of my F31.

I didn't drive the car outside of the neighborhood but no rubbing was apparent. Car is lowered on ACS springs -- similar to factory M sport suspension.
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      09-23-2015, 09:31 PM   #11
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Quote:
Originally Posted by jww///95 View Post
I test fit factory 400M 18x8.5 rears w/ 255/40-18 conti rfts on the front and it clears the strut, fender, and fender liners with a 12mm spacer (which puts the offset at effectively a et35) of my F31.

I didn't drive the car outside of the neighborhood but no rubbing was apparent. Car is lowered on ACS springs -- similar to factory M sport suspension.
very good. i want to run this exact tire size.

did you try left and right turns at a full lock? thats the only thing im worried about tbh.
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      09-23-2015, 09:35 PM   #12
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Quote:
Originally Posted by ///WORK-F36 View Post
My offsets are 7mm more aggressive, but the tread width is 10mm wider if you go 255....depends on the tire you're gonna run too. I'm running V12 Hankooks, but MPSS will run much wider
idunno why you rub actually. im running 245 up front too on a 9'' wide wheel+34. no rub

shouldnt be too different from you.
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      09-23-2015, 11:36 PM   #13
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Quote:
Originally Posted by kzflags View Post
idunno why you rub actually. im running 245 up front too on a 9'' wide wheel+34. no rub

shouldnt be too different from you.
my offset is +28
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      09-24-2015, 12:30 AM   #14
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255/40/18 on an 8.5 with ET35 will not rub. works just fine.
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      09-24-2015, 10:10 AM   #15
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You may want to share the tire manufacturer with OP. If you're running Dunlop Direzza it probably wouldn't be an issue. If he buys MPSS or Conti he'll likely run into issues.


Quote:
Originally Posted by MickAv8r View Post
255/40/18 on an 8.5 with ET35 will not rub. works just fine.
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      09-24-2015, 05:47 PM   #16
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Quote:
Originally Posted by kzflags View Post
very good. i want to run this exact tire size.

did you try left and right turns at a full lock? thats the only thing im worried about tbh.
Yep, full lock cleared both sides of the fender liner (front of fender and rear of fender).

Also to note, the 255 Conti RFTs are decently wide... Actual section width was measured at 10.1" on the 8.5 wheel.
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      09-24-2015, 05:51 PM   #17
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Quote:
Originally Posted by jww///95 View Post
Yep, full lock cleared both sides of the fender liner (front of fender and rear of fender).

Also to note, the 255 Conti RFTs are decently wide... Actual section width was measured at 10.1" on the 8.5 wheel.
Treadwidth on MPSS will be around half an inch wider than the Contis
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      09-24-2015, 06:12 PM   #18
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Quote:
Originally Posted by ///WORK-F36 View Post
Treadwidth on MPSS will be around half an inch wider than the Contis
Should have noted i have the summer contis and not the all seasons. I think they measure out similarly to the mpss (tire rack inflated section widths on 9" wheels are 10.2 for both the conti and the mpss). Would be interested to know measured widths for the mpss in the wild for comparison to see if it is in fact that close.
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      09-24-2015, 10:52 PM   #19
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255/40ZR18 Michelin Pilot Super Sports on 18x9 et42 Apex ARC-8s with a 3mm spacer up front here.
The car is my daily driver and I've also had it on track for a time trial event and there is zero rub.
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      09-25-2015, 09:51 AM   #20
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Quote:
Originally Posted by NorthNJ View Post
You may want to share the tire manufacturer with OP. If you're running Dunlop Direzza it probably wouldn't be an issue. If he buys MPSS or Conti he'll likely run into issues.
I'm running PSS. Absolutely zero issues.

If you are rubbing with a 245, what is your height ratio. what tire are you running a 35/40/45???
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Last edited by MickAv8r; 09-25-2015 at 09:57 AM.
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      09-25-2015, 02:04 PM   #21
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great topic ...can you guys share some pics with 255s?
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      09-25-2015, 02:40 PM   #22
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Haven't seen it on stock wheels, but we did put 255/30/20 + 275/30/20 on VFF 103's for a 435i

No issues with rubbing
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