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BMW 5-Series (G30) Forum Wheels | Tires | Suspension | Brakes | Chassis 2020 M550 20" wheels- are F/R same width?

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      11-12-2019, 10:41 AM   #1
wheresmy5
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2020 M550 20" wheels- are F/R same width?

Hey folks, looking to swap out the OEM Summers with non-runflat all-seasons on a 2020 M550 and would prefer a square setup.

OEM tires are 245/35-20 F / 275/30-20 R.
I'm fairly certain that both front and rear 20" wheels are same size, but wanted to make sure.

Ideally I'd like to run 245/35 all around, rotate when needed, and squeeze out some additional life out of the new A/S's.

Side question, how does the AWD system not get fried from overuse- the OEM rolling diameters with this set up are a quarter inch off?

front side wall = 245 x 0.35 = 85.75mm
rear side wall = 275 x 0.30 = 82.5mm

2 x 85.75mm - 82.5mm = 0.256"
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      11-12-2019, 04:22 PM   #2
wheresmy5
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Welp.... looks like the FRONT are 20X8 and REARS 20X9. So I will need to stagger the tires as per OEM... 245/35-20 F / 275/30-20 R
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      11-13-2019, 07:57 AM   #3
ski1972
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go for 245 40 20 / 275 35 20 Continental DWS won't regret. ride quality will drastically improved.
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      11-15-2019, 07:45 PM   #4
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My vote is for the Michelin Pilot Sport A/S 3+

Such a great tire
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      11-16-2019, 08:20 AM   #5
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Quote:
Originally Posted by gsrbri View Post
My vote is for the Michelin Pilot Sport A/S 3+

Such a great tire
+1
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      11-17-2019, 02:15 AM   #6
deepat04
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Quote:
Originally Posted by gsrbri View Post
My vote is for the Michelin Pilot Sport A/S 3+

Such a great tire
agree..
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      11-26-2019, 09:27 PM   #7
hlothery
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My vote goes to the Michelin PS3ZP, in my opinion a new revelation in runflats, which performs truly like a performance tire and rides smooth and quiet. Love mine. New tire, though, may be hard to get.
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