Racing Wheel for Yamaha R1 (2004-2005). This wheel kit that combines OZ« wheel technology, Braking« Wave« disk technology and Sunstar« sprocket technology into one single product. Technical features and benefits: SK Wave« disk (ORIGINAL OD). 9-Spoke cast aluminum wheel. Higher axial rigidity that provides less vibrations. Weight in the center that offers better handling. One single kit with disks that is easy to manage.