[Norris83]

Originally Posted by phineasxx1

Hey brother i just bought a 2018 bmw 540i x drive the car is amazing and handle very good but i wanna upgrade the wheel to 20 inch and do a staggered setup but i don’t know what size tires and wheel off set that would fit the car and not gonna mess up the xdive system can you help me out the car currently have 19inch wheel and 245/40r19 tire all around i like a wider rear tire

Congrats on the car! They’re awesome cars.
Depending on your wheels setup I can recommend different tire setups.
If you get the oem wheels I would do one of either setups since they come in 8” wide fronts and 9” wide in the rears.

For OEM wheels

Increase the profile size +1, which is what I’ve done.
245/40/20 recommended wheel width is 8-9”
275/35/20 recommended wheel width is 9-10”

Or increase the width +1. It’s a little bit wider than the recommended wheels but some members have done it.
255/35/20 recommended wheel width 8.5-9.5”
285/30/20 recommended wheel width 9.5-10.5”

You can go with wider tires +2 If you get aftermarket wider wheels, you can go with 9” fronts with 25-30mm offset and 10” rears with 38-41mm offset.
265/35/20
295/30/20