225/45/17 winter tires?

mikeyb99 · 11-02-2008, 02:31 PM

hey guys, will 4 x 225/45/17 ET35 tires/rims fit on my 2008 M3? thanks.

skierman64 · 11-02-2008, 02:52 PM

I don't know for sure but it seems as if brake clearance may be an issue with 17" diameter wheels.

mikeyb99 · 11-02-2008, 10:44 PM

Quote:

Originally Posted by skierman64

I don't know for sure but it seems as if brake clearance may be an issue with 17" diameter wheels.

ok i will check. Is the offset ok?

JAJ · 11-02-2008, 11:10 PM

Quote:

Originally Posted by mikeyb99

hey guys, will 4 x 225/45/17 ET35 tires/rims fit on my 2008 M3? thanks.

It's very unlikely that the wheels will clear the brakes at the front. Rear might be ok, but the front won't be.

mikeyb99 · 11-03-2008, 01:05 AM

does anyone have a 'total front brake' rim clearence diameter for the M3?

JAJ · 11-03-2008, 05:06 PM

Quote:

Originally Posted by mikeyb99

does anyone have a 'total front brake' rim clearence diameter for the M3?

I measured mine just after I got the car. I don't have my notes handy but I recall a radius of 210mm plus clearance (say 3 to 5mm) so that the barrel of the rim will clear the the front caliper. That means the barrel inside diameter has to be more than 16-1/2 inches. I don't think you'll find a 17" rim with that large a barrel diameter. The barrel has a trough between the beads so that the tire can be pulled over the outer lip during mounting, and the depth of the trough makes the barrel smaller.

The rears are easier - I had a set of BMW Type 49 17" rims for my M5 snowtires and they fit in the rear. The Type 49 is one of BMW's largest barrel diameter 17" rims and they were definitely no-go up front - they were way too small.

mikeyb99 · 11-04-2008, 10:29 AM

Quote:

Originally Posted by JAJ

I measured mine just after I got the car. I don't have my notes handy but I recall a radius of 210mm plus clearance (say 3 to 5mm) so that the barrel of the rim will clear the the front caliper. That means the barrel inside diameter has to be more than 16-1/2 inches. I don't think you'll find a 17" rim with that large a barrel diameter. The barrel has a trough between the beads so that the tire can be pulled over the outer lip during mounting, and the depth of the trough makes the barrel smaller.

The rears are easier - I had a set of BMW Type 49 17" rims for my M5 snowtires and they fit in the rear. The Type 49 is one of BMW's largest barrel diameter 17" rims and they were definitely no-go up front - they were way too small.

thanks for the helpful info!

I measured the inside rim diameter and it was close to 15-3/4 inches. So it doesn't sound like it would fit ;(

The rotors up front on the M3 are already 360mm - so that combined with big caliper make it a no-go. While the rears are 350mm with a smaller caliper - making it possible.

Time to find 18's! Thanks.

sparkyg · 11-04-2008, 11:02 AM

18" winters ftw!!

I am using my stock set with Michelin PA3's

valeram · 11-04-2008, 01:03 PM

The last time I check with Ben @ TireRack, he mentioned that 17 will not fit for e9? M3. He recommends 18.

11-02-2008, 02:31 PM	#1
mikeyb99 Private 6 Rep 57 Posts Drives: Z4M Roadster Join Date: Apr 2008 Location: Toronto iTrader: (0)	225/45/17 winter tires? hey guys, will 4 x 225/45/17 ET35 tires/rims fit on my 2008 M3? thanks.
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11-02-2008, 02:52 PM	#2
skierman64 Brigadier General 125 Rep 3,071 Posts Drives: E92M3-E46M3-E46Wagon-E89Z4-E36 Join Date: Dec 2006 Location: Greater St Louis Metro area iTrader: (1) Garage List 1994 325is Race Car [0.00] 2011 BMW Z4 [0.00] 1998 M3 Coupe [0.00] 2008 M3 Coupe [0.00]	I don't know for sure but it seems as if brake clearance may be an issue with 17" diameter wheels. __________________ Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive[/LEFT]
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11-03-2008, 01:05 AM	#5
mikeyb99 Private 6 Rep 57 Posts Drives: Z4M Roadster Join Date: Apr 2008 Location: Toronto iTrader: (0)	does anyone have a 'total front brake' rim clearence diameter for the M3?
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11-04-2008, 11:02 AM	#8
sparkyg Brigadier General 142 Rep 3,522 Posts Drives: work truck Join Date: Sep 2007 Location: Oil Country iTrader: (5)	18" winters ftw!! I am using my stock set with Michelin PA3's
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11-04-2008, 01:03 PM	#9
valeram Major 37 Rep 1,413 Posts Drives: 992 TTS, 991.2 GT3 T, F80 M3 C Join Date: Oct 2006 Location: Dublin, OH iTrader: (0)	The last time I check with Ben @ TireRack, he mentioned that 17 will not fit for e9? M3. He recommends 18.
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