ENVE Composites SES 4.5 Pro Front Rim - 700 Disc 24H BlackSES 4. 5 PRO rims were designed for cyclists seeking the ultimate wheelset where low weight aerodynamics and rolling efficiency meet. PRO series product has been developed in direct collaboration with the worlds top racers and represents the pinnacle of innovationengineered and built for race winning performance. New rim laminate using higher modulus lower areal weight carbon fiber rim is optimized to further improve tubeless tire and rim reliability