666M Tire Sizes

sk3let0nz · 11-20-2020, 12:04 AM

Hi, I currently have the 666M on the stock setup of 265/30/20 and 285/30/20 for my BMW M4. I've been considering going up to 275/30/20 and 295/30/20 for it. Do any of you currently still have this setup, or would recommend doing this? I read that the F80 has rubbing, but the F82 doesn't but I'm not sure if others have begun to experience that or not. Thanks

irunalot · 11-20-2020, 05:36 AM

I went to 295/30/20 rears but stayed with 265/30/20 fronts on 666s. After some research here I found that the fronts may or may not hit the liner on the F80 and didn't want to take the risk.

The rears worked great. My car is lowered with MPHAS and I do not run any spacers

activediff · 11-20-2020, 06:42 AM

Same. I stayed at stock 265s in front and went with 295/30/20 in back. The 285 rears were out of stock when I needed tires (PS4s) over the summer. Various posts confirmed this set up and gave me confidence. It has worked out great.

sk3let0nz · 11-20-2020, 09:04 AM

Ahh, got it. Thanks guys.

11-20-2020, 12:04 AM	#1
sk3let0nz Private First Class 80 Rep 151 Posts Drives: 2022 M4 xDrive Join Date: Apr 2020 Location: Houston iTrader: (1)	666M Tire Sizes Hi, I currently have the 666M on the stock setup of 265/30/20 and 285/30/20 for my BMW M4. I've been considering going up to 275/30/20 and 295/30/20 for it. Do any of you currently still have this setup, or would recommend doing this? I read that the F80 has rubbing, but the F82 doesn't but I'm not sure if others have begun to experience that or not. Thanks
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11-20-2020, 05:36 AM	#2
irunalot Captain 1518 Rep 820 Posts Drives: Porsche Carrera S Join Date: Oct 2020 Location: Miami iTrader: (0)	I went to 295/30/20 rears but stayed with 265/30/20 fronts on 666s. After some research here I found that the fronts may or may not hit the liner on the F80 and didn't want to take the risk. The rears worked great. My car is lowered with MPHAS and I do not run any spacers
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11-20-2020, 06:42 AM	#3
activediff New Member 3 Rep 24 Posts Drives: M3 Join Date: Dec 2018 Location: St. Joseph, MI iTrader: (1)	Same. I stayed at stock 265s in front and went with 295/30/20 in back. The 285 rears were out of stock when I needed tires (PS4s) over the summer. Various posts confirmed this set up and gave me confidence. It has worked out great.
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11-20-2020, 09:04 AM	#4
sk3let0nz Private First Class 80 Rep 151 Posts Drives: 2022 M4 xDrive Join Date: Apr 2020 Location: Houston iTrader: (1)	Ahh, got it. Thanks guys.
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