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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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