I am running PSS 275/30/19 on a 10" wheel with a 20 ET in the back of an E90 with a KW V3 lowered to 13.5" from the center of the roundel to the fender. No rubbing. Knowing what I know now about tires I would have gotten the 275/35/19. My fronts are 245/35/19 on an 8.5" w/15 ET. I'm planning on running the same fronts with 285/30/19 if they ever come out.
'13 35i M-Sport X3 | JB4 Stage 1 | BMS Intake | H&R Springs | Gloss black grill | CF Wrap and Coded by me | Recaro Child Seats
'15 M3 DCT AW/SO | JB Stage 1 | RKP Diffuser | P3 | M Perf Spoiler | iND Exterior Trim | Recaro Child Seat