I am looking to replace the 20" Uberturbins on my 2022 M3P. Im not a fan of the ultra low profile stretched tires. I'm looking for lighter 19"x8.5" wheel and 245x45 19" tires. If I'm buying new wheels one priority is to get a more flush tire to fender fitment. Measuring the existing 20x9 Uberturbines with +34 offset, it looks like I need an extra 6mm offset in the front and an extra 13mm in the rear. Changing from a 9" wide wheel to a 8.5" wide wheel will with the same offset will set the wheel into the fender 1/4" or 6.35mm. So I need to add the 6mm to the additional offset needed for the factory wheels. By my calculations a +22mm front and +15mm rear offset should be a good fit. All this said I am looking for 19x8.5 wheels with a +20 to +22 offset. After mounting, if I think it needs it I will use a 5mm spacer on the rear.
I will probably use Continental DWS06+ 245x45R19 tires.
If you understand wheel offsets please review my calculations and let me know if this sounds correct.
I will probably use Continental DWS06+ 245x45R19 tires.
If you understand wheel offsets please review my calculations and let me know if this sounds correct.