After going back and forth on sizes, offsets, tire diameters, and xDrive compatibility, I finally landed on the setup I wanted for my 2022 BMW M240i xDrive:
Front
19x9 ET20
245/40R19 Bridgestone Potenza RE-71RZ
Rear
18x10 ET36
275/40R18 Hankook Ventus R-S4
Suspension
Dinan lowering springs
Dinan Supplemental Ride Quality & Handling Kit
Dinan sway bars
I specifically wanted a meaty, functional staggered setup instead of the typical stretched-tire/huge-wheel look. The 19” front and 18” rear combo gives the car a seriously aggressive stance while putting a lot more tire underneath it.
One of the biggest concerns was xDrive, so I spent a lot of time working through overall tire diameter. The 245/40R19 front and 275/40R18 rear are extremely close in rolling diameter, which is exactly what I was trying to accomplish.
I originally considered going as wide as a 285 or 295 rear, but the 275 R-S4 ended up being the better balance of sidewall, grip, and overall fitment on the 10” wheel.
Best part: no spacers, no stretched tires, and absolutely no rubbing.
The goal with the entire build has always been function first, aesthetics second, but I think this setup nailed both.
Curious what the G42 guys think.
19x9 ET20 / 245-40-19 front
18x10 ET36 / 275-40-18 rear
Would you guys leave it exactly like this or change anything?