Help with tire size

sagerstner · 03-21-2011, 11:55 AM

Thanks in advance for your help.

I am looking @ picking up a set of the 20" Breyton GTSR-M for my 2011 E93.

Size: 20x8.5 Offset: +29mm Backspacing: 5.90" Rec. Tire Size: 245/30-20

Size: 20x10 Offset: +23mm Backspacing: 6.41" Rec. Tire Size: 265/30-20

How much larger above 245/30/20 & 265/30/20 can I go without rubbing? I am at stock height w/ no spacers.

Thanks again.

Brosef · 03-21-2011, 12:08 PM

I would suggest 255/30R20 for the front and 285/30R20 for the rear. the rear would be nice and flush, but the front could take an additional 5 or 7.5mm spacer.

03-21-2011, 11:55 AM	#1
sagerstner Enlisted Member 4 Rep 38 Posts Drives: 2011 E93 M3 Join Date: Jul 2009 Location: Austin, Texas iTrader: (0)	Help with tire size Thanks in advance for your help. I am looking @ picking up a set of the 20" Breyton GTSR-M for my 2011 E93. Size: 20x8.5 Offset: +29mm Backspacing: 5.90" Rec. Tire Size: 245/30-20 Size: 20x10 Offset: +23mm Backspacing: 6.41" Rec. Tire Size: 265/30-20 How much larger above 245/30/20 & 265/30/20 can I go without rubbing? I am at stock height w/ no spacers. Thanks again.
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03-21-2011, 12:08 PM	#2
Brosef Brigadier General 876 Rep 3,450 Posts Drives: F90 M5 Join Date: Aug 2009 Location: Chicago iTrader: (4)	I would suggest 255/30R20 for the front and 285/30R20 for the rear. the rear would be nice and flush, but the front could take an additional 5 or 7.5mm spacer.
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