Anything wrong with this setup? 215/245 on 8" and 9"

wolfe · 08-24-2011, 06:28 AM

This is to be installed on alufelgen CS7's 8x18 et 45 and 9x18 et 48.

I'm looking at 215/40/R18 on the front and 245/35/R18 on the rear, to avoid the rubbing that some people are experiencing with 255 rears.

My car is stock height (sport suspension) at the moment but I am planning on installing the BMW performance suspension at some point.

Would these narrower tires cause the tire shop any issues with installing, or make damage to the rim more likely during installation?

These are the specific tires (ventus V12s)

blschaefer1 · 08-24-2011, 09:16 AM

Nothing wrong with it but should be fine with those tires in a 225/255 size. They don't run as wide as some and have a more rounded shoulder.

RimasRS · 08-24-2011, 09:20 AM

At least you can put 225 in the front.

wolfe · 08-24-2011, 11:09 AM

I was wondering about 225 fronts with 245 rears, but when I looked at the specs, the rolling diameter between the two changed by about 80mm. (215s and 245s seem to be identical) I was worried this could confuse the stability control, valid concern or not?

thanks

Eddy@ApexWheels · 08-30-2011, 09:21 PM

Quote:

Originally Posted by wolfe

I was wondering about 225 fronts with 245 rears, but when I looked at the specs, the rolling diameter between the two changed by about 80mm. (215s and 245s seem to be identical) I was worried this could confuse the stability control, valid concern or not?

thanks

It's not an issue what so ever.

dicker · 08-31-2011, 03:33 AM

run 225 front and 245 rear, no rubbing and the car will handle better!

fboutlaw · 08-31-2011, 04:11 AM

Quote:

Originally Posted by wolfe

I was wondering about 225 fronts with 245 rears, but when I looked at the specs, the rolling diameter between the two changed by about 80mm. (215s and 245s seem to be identical) I was worried this could confuse the stability control, valid concern or not?

thanks

You won't notice any change in DTC. Especially with wider wheels, you should consider wider tires. Changing to the BMW Perf. Suspension will not be as effective unless you have more grip.

wolfe · 08-31-2011, 06:56 AM

Thanks guys, that's great to know on the fronts, I think I'll go with the 225s then.

I'm really having a hard time deciding on the rears. I'd definitely like to go 255 but at least two people here are having slight rub issues at stock ride height, seemingly due to the passenger rear wheel being about 4mm closer to the fender than the driver's side. Checked my stock wheels with a straightedge and my car seems to be the same way.

BrokenVert · 08-31-2011, 07:09 AM

You can run a 245/255 setup if you wanted to

wolfe · 08-31-2011, 11:03 AM

with no fender roll on the front?

jimmy1990 · 08-31-2011, 11:06 AM

nothing wrong with the setup

dicker · 08-31-2011, 11:29 AM

the 255 may rub over hard bumps, mine did with 255/35/18 on a 9+50 with the BMW perf stuff and eibach springs, it's not really a big deal though.

Go with the 255 v12 and you'll be fine, if you went with an NT05 or AD08 or RS3 etc you'd rub more easily.

08-24-2011, 06:28 AM	#1
wolfe Captain 134 Rep 613 Posts Drives: e82 / e70 / r56 / r60 Join Date: Apr 2010 Location: USA iTrader: (1)	Anything wrong with this setup? 215/245 on 8" and 9" This is to be installed on alufelgen CS7's 8x18 et 45 and 9x18 et 48. I'm looking at 215/40/R18 on the front and 245/35/R18 on the rear, to avoid the rubbing that some people are experiencing with 255 rears. My car is stock height (sport suspension) at the moment but I am planning on installing the BMW performance suspension at some point. Would these narrower tires cause the tire shop any issues with installing, or make damage to the rim more likely during installation? These are the specific tires (ventus V12s)
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08-24-2011, 09:16 AM	#2
blschaefer1 First Lieutenant 205 Rep 393 Posts Drives: 2022 X3 xDrive 30i Join Date: Jun 2011 Location: Prescott, AZ iTrader: (1)	Nothing wrong with it but should be fine with those tires in a 225/255 size. They don't run as wide as some and have a more rounded shoulder.
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08-24-2011, 09:20 AM	#3
RimasRS Colonel 85 Rep 2,438 Posts Drives: BMW X3 SD Join Date: Sep 2010 Location: Europe iTrader: (0)	At least you can put 225 in the front.
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08-24-2011, 11:09 AM	#4
wolfe Captain 134 Rep 613 Posts Drives: e82 / e70 / r56 / r60 Join Date: Apr 2010 Location: USA iTrader: (1)	I was wondering about 225 fronts with 245 rears, but when I looked at the specs, the rolling diameter between the two changed by about 80mm. (215s and 245s seem to be identical) I was worried this could confuse the stability control, valid concern or not? thanks
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08-31-2011, 03:33 AM	#6
dicker Captain 69 Rep 847 Posts Drives: F80 6MT Join Date: Apr 2008 Location: SoCal iTrader: (8)	run 225 front and 245 rear, no rubbing and the car will handle better!
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08-31-2011, 06:56 AM	#8
wolfe Captain 134 Rep 613 Posts Drives: e82 / e70 / r56 / r60 Join Date: Apr 2010 Location: USA iTrader: (1)	Thanks guys, that's great to know on the fronts, I think I'll go with the 225s then. I'm really having a hard time deciding on the rears. I'd definitely like to go 255 but at least two people here are having slight rub issues at stock ride height, seemingly due to the passenger rear wheel being about 4mm closer to the fender than the driver's side. Checked my stock wheels with a straightedge and my car seems to be the same way.
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08-31-2011, 07:09 AM	#9
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	You can run a 245/255 setup if you wanted to __________________
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08-31-2011, 11:03 AM	#10
wolfe Captain 134 Rep 613 Posts Drives: e82 / e70 / r56 / r60 Join Date: Apr 2010 Location: USA iTrader: (1)	with no fender roll on the front?
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08-31-2011, 11:06 AM	#11
jimmy1990 Second Lieutenant 12 Rep 234 Posts Drives: 128i sedona Red Join Date: Feb 2011 Location: Indiana iTrader: (1)	nothing wrong with the setup
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08-31-2011, 11:29 AM	#12
dicker Captain 69 Rep 847 Posts Drives: F80 6MT Join Date: Apr 2008 Location: SoCal iTrader: (8)	the 255 may rub over hard bumps, mine did with 255/35/18 on a 9+50 with the BMW perf stuff and eibach springs, it's not really a big deal though. Go with the 255 v12 and you'll be fine, if you went with an NT05 or AD08 or RS3 etc you'd rub more easily.
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