255/40/17 in the front

Suhb · 04-10-2016, 05:52 PM

I have no experience with wheel/tire fitment since I never pushed the boundaries of clearance before so any help is appreciated. I'm looking to fit 255/40/17 bridgestone S0-4 Pole Positions in the front on OZ Ultraleggeras.

The wheel dimensions are 17x8 ET40

I currently have 2.4 degrees of camber in the front with fixed dinan camber plates and M3 control arms. Will this work? If not, what will I need to make it work?

My other alternative is running 245/40/17 super sports but I'd prefer the 255/40 since it is closer to the factory ratio.

dbronnik · 04-12-2016, 08:28 PM

I'm pretty sure all the camber in the world will not let you fit 255/40R17 in the front on any wheel without rubbing on stock fenders. (I tried to make 255/35R18 work for a while on ET40 wheel up front but it just wasn't working out, and that was with -3.x degrees camber). MAYBE if you really pull on your fenders enough you can make it work.

Also, see: http://www.1addicts.com/forums/showthread.php?t=216413

Ginger_Extract · 04-12-2016, 09:04 PM

It will fit fine with a fender roll. I ran 255/40 on 17x8.5 ET40 up front with -2.5 camber and fender roll.
I now used 255/40 on 17x9 ET35 up front with -3 camber and more aggressive roll and clearancing without rub. The car regularly bounces the curbing on track without rubbing.

joeo · 06-18-2017, 12:40 PM

Ginger_Extract - are you running a square 17x9 setup with 255/40 R17s? I'm currently running two pairs of the stock rear (261 style - 8.5" - think offset is 52) rims with 255/35 R18s with a TC Kline coil over, camber plates, and front fender roll. I have 12mm spacers in front and 3mm spacers in rear.
This works very well, but my tire options are basically the R888/R888Rs in that size. I was thinking of going with the Kosei K5R wheels with a 45 offset.
Thoughts?

-Joe

04-10-2016, 05:52 PM	#1
Suhb First Lieutenant 119 Rep 377 Posts Drives: 2010 128i Coupe 6-Speed Join Date: Dec 2012 Location: PA iTrader: (3)	255/40/17 in the front I have no experience with wheel/tire fitment since I never pushed the boundaries of clearance before so any help is appreciated. I'm looking to fit 255/40/17 bridgestone S0-4 Pole Positions in the front on OZ Ultraleggeras. The wheel dimensions are 17x8 ET40 I currently have 2.4 degrees of camber in the front with fixed dinan camber plates and M3 control arms. Will this work? If not, what will I need to make it work? My other alternative is running 245/40/17 super sports but I'd prefer the 255/40 since it is closer to the factory ratio.
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04-12-2016, 08:28 PM	#2
dbronnik Lieutenant 223 Rep 542 Posts Drives: N54 E88 Join Date: Mar 2012 Location: California iTrader: (4) Garage List 2011 BMW X5M [0.00] 1999 BMW Z3M Coupe [8.33] 2008 BMW 135i Conve ... [5.66] 2009 BMW M3 [0.00]	I'm pretty sure all the camber in the world will not let you fit 255/40R17 in the front on any wheel without rubbing on stock fenders. (I tried to make 255/35R18 work for a while on ET40 wheel up front but it just wasn't working out, and that was with -3.x degrees camber). MAYBE if you really pull on your fenders enough you can make it work. Also, see: http://www.1addicts.com/forums/showthread.php?t=216413 __________________ My E88 Build My Parts for Sale
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04-12-2016, 09:04 PM	#3
Ginger_Extract California-bound 385 Rep 1,480 Posts Drives: BMW 135i Join Date: Jan 2013 Location: Los Angeles, CA iTrader: (3)	It will fit fine with a fender roll. I ran 255/40 on 17x8.5 ET40 up front with -2.5 camber and fender roll. I now used 255/40 on 17x9 ET35 up front with -3 camber and more aggressive roll and clearancing without rub. The car regularly bounces the curbing on track without rubbing. __________________ Streets of Willow: 1:27.7 CW 11/15/15; 1:29.5 CCW 8/15/15 \|\|\|\| Autoclub Speedway ROVAL (CCW): 1.52.6 - 12/2/17 Willow Springs - Big Willow (CW): 1:35.8 - 3/31/18 \|\|\|\| Buttonwillow #13 (CW): 1:59.3 1/27/18 https://www.facebook.com/JakeStumphRacing \|\|\|\| http://www.youtube.com/user/RaceMeMZ3
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06-18-2017, 12:40 PM	#4
joeo Lieutenant 120 Rep 475 Posts Drives: 2009 Crimson Red 135i Join Date: Mar 2008 Location: Sterling, Va iTrader: (0) Garage List 2009 BMM 135i [9.50]	Ginger_Extract - are you running a square 17x9 setup with 255/40 R17s? I'm currently running two pairs of the stock rear (261 style - 8.5" - think offset is 52) rims with 255/35 R18s with a TC Kline coil over, camber plates, and front fender roll. I have 12mm spacers in front and 3mm spacers in rear. This works very well, but my tire options are basically the R888/R888Rs in that size. I was thinking of going with the Kosei K5R wheels with a 45 offset. Thoughts? -Joe
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