Enkei GW8 18x7.5 4x100/114.3 42mm Offset 72.6 Bore Matte Black Wheel - 448-875-0142BKGW8 Sizes 17 & 18 Inch Available In Black with Red or Chrome Trim Spec E Inspected SPEC E All Enkei wheels are engineered to pass rigorous testing. In fact, Enkei established its own test standard called Spec E, which is tougher than JWL requirements. Enkeis Spec E test setting requires a higher drop point in the impact test and 20% more cycles for the rotary bending fatigue and dynamic radial fatigue tests than JWL standards. The Spec E represents