Quote:
Originally Posted by VirtualGuitars
The guy was definitely full of it. I would stick with the original size. Here's what came with the 759i's on my M550i:
Front: 245/35R20 Fr Run-Flat
Rear: 275/30R20 Rr Run-Flat
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Can confirm my 530i came with the above from BMW factory since day 1
Front 245/35 R20 Run Flat Pirelli PZERO
Rear 275/30 R20 Run Flat Pirelli PZERO