The rim design allows for maximum aerodynamic penetration when the wind angle is between 12° and 19°, making it a boost for triathlon athletes. The elliptical cross section of 18 spokes at the front and 21 spokes at the rear result in a much higher rolling resistance compared to competitive wheels. The well-known USB cup and cone bearing system ensures the smoothness of the ceramic bearings. The C19 class allows you to mount tires from 23, 25 to 28mm, with the perfect rim system pairing. Game weight: 1547 grams. Weight: 1547g.