hey i'm new to the forum and i could have sworn i tried to post this before but it didn't go up or something, but anyways i am trying to find out the smallest diameter rim that will fit the xf. i have 20" chrome rims for daily driving and i've been using the stockers for racing but even the stock wheels are retarded heavy. so in order to try and reduce some un spun weight i'm trying to find out what the smallest rim i can get is... anyone know? i'm thinking 17's would clear but i don't want to find out the hard way lol. thanks for your help.