[v3.0si]

front = 19" x 8.0" et29 (e89 225/35r19)
rear = 19" x 9.0" et40 (e89 255/30r19)

also... note to OP... don't use runflats with these. some of the e89 wheels in 19" diameters have rear wheel cracking issues. check "z4-forum.com" for specifics. and remember, your rear brakes are going to look tiny. that is the only reason i didn't go for these myself, even though they are absolutely gorgeous.