Enkei J10 16x7 5x112/114.3 38mm Offset 72.62mm Bore Dia Silver w/ Machined Lip Wheel - 409-670-26SPJ10 Sizes 15, 16, 17, & 18 Silver with Machined Lip or Matte Black with Machined Lip 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