The Fusion is the perfect combination of the features/benefits of the Aerohead and the Deep V. Light like the Aerohead, strong and durable like the Deep V, but with less weight. The perfect balance of weight and strength.<p><li>Rim Size: 700c</li><li>Width: 19mm</li><li>Height: 25mm</li><li>Tire Interface: Clincher</li><li>Valve: Presta 41 - 55mm</li><li>Bead Seat Diameter (BSD): 622</li><li>Effective Rim Diameter (ERD): 591</li><li>Weight: 460g</li></p>