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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum Rear Tires 2011 550i
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      03-27-2019, 06:54 PM   #1
CarlosER16
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Rear Tires 2011 550i

I really dislike the rubberband look of my current tires. Looking for a bit more cushion. Currently have 275/30/20 on my rear. Do you think I could jump to 275/40/20s? Asking for a friend...
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      03-27-2019, 08:33 PM   #2
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A simple tire size calculator should give you the answer you need....they can easily be found by typing "tire size calculator" in a google search box.

You need to compare the rear and front axle overal rolling circumference and diameter...they should remain within 3% (+/-) of each other to prevent ABS/traction control/odometer/speedometer and AWD system (if so equipped) issues.

You may also want to check if there will be any suspension rubbing or too much "poke" ( a higher wheel aspect ratio from 30 to 35 shouldn't cause this issue...but I'd definitely check going from 30 to 40, though). Here's a good site for checking the aforementioned: www.willtheyfit.com
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      03-28-2019, 12:55 AM   #3
CarlosER16
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That was a great help, thanks a bunch!
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      03-28-2019, 10:14 AM   #4
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      03-28-2019, 02:53 PM   #5
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other's have switched from 20's to 19's as well
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      03-28-2019, 04:47 PM   #6
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19" wheels and suitable boots for the win.
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