DXR's XRM WHEELS, carbon Fiber, reinforced competition REAR race wheels. Strong, light, durable, great looking and TRUE. Machined RWD wheels for the serious racer who depends on durability, looks, form and function. Available in: -1, (negative 1), 0, (zero offset), +1. +2, +3 offsets to custom set the front track width for optimum handling. *Recommended tire gluing and tire trueing, for optimum performance with the NEXXRACINGUSA.com NX-265 Compact tire truer, available at additional cost. Makes a big difference.