OG Racer-X by Axis The Racer-X is reminiscent of an older Axis design, the Maglite, but with the addition of a lip, and a MASSIVE 5 inch lip on this, the 15x8 size. This wheel is almost exclusively for the rear of the 4 lug Scion xB. Wheelstudio has bought a couple dozen sets of some flares to put on the xB, call us for pricing details!