I'm using the TRMotorsport wheels on my B14.15x8 with a 15mm offset.I had 225/45/15 RS3's on them,and they worked just fine.I had to ream out the center bore slightly,the fitment on these was for an older 3 series Bimmer. My autocross wheels are 15x9 6ul's with 275/35-15 Hoosiers :0 I needed a 10mm spacer to get them to fit,but it's all kinds of awesome.