A Kahn Design Wheels RS-XF Wheels By Mike DelaCruz Posted on January 1, 2014 RS-XF Wheels Specifications Size Range: 20×8.5, 21×9, 21×10.5 Applications: Most Popular Applications Construction: Cast Monobloc RS-XF Wheel Gallery Comments Recommended for you CR Sport Wheels Silver Mist Rolls Royce Wheels Silver Mist Bentley Wheels