Introducing the Presto!  Featuring the all-new Tiger 2 piece Dynamic Core hub and Neothane urethane, the Presto sets a new standard for performance.  Instead of having a single hollow cavity, the Tiger has channels, which offer support to every part of the wheel’s surface while keeping it extremely light.  The result is a fast and aggressive ride.  The presto offers the previously unattainable combination of lightness, speed, grip and controlled stops Pack Of 4 Recommended use: Derby, Jam Size: 38mm x 62mm Size: 38mm x 59mm Hardness: 88A Teal, 91AYellow, 93A Red 95ABlue 97APurple