Rays Engineering is The Premier Wheel Manufacturer in Japan. Volk Racing wheels are made by Rays Engineering. Volk Racing wheels are known for their Strength, Lightweight and Stylish Designs. They are the Leader in wheel designs and colors that all others follow. Volk Racing wheels come in Forged One Piece (Monoblock), Forged Two Piece (SF Series) or Forged Outer and Cast Center Two Piece (GT Series) designs. Volk Racing wheels exceeds standard JWL testing levels! Volk Racing wheels have set the testing level higher with JWL+R. Volk Racing wheels are used in all types of Motorsports in Japan from Drifting, JGTC to Formula 1.