We just got a great deal on these OEM 220M wheels off an M3 and decided to put them on !
The original specs are
Fronts
19 x 8.5 +29mm offset
245/35/19 tires
Rears 19x 9.5 +24mm offset
265/35/19 tires
However we have a 2011 328i LCI and the tires will rub a lot with those setups without a fender mod so we needed to use 245/35/19 on the rears and 235/35/19 tires for the fronts. We are very happy with the results, a flushed and aggressive setup with zero rubs on the front . However, the rears still have a slight rub on dips when there are passengers on the back. Stock Suspension.... We may consider a fender roll on the rears in the near future.
The wheels since they are forged wheels are very light 25 pounds on the rears and 24 pounds on the fronts plus the tire weight which is about 20 pounds according to specs.
