Developed and tested using Turbulent Aero technology, the 42|49 is designed for everything you do, providing all-day capability with aerodynamic sensibilities. Raced at events as varied as the Paris-Roubaix and the Giro D'Italia, the 42|49 wheels. In keeping with Reserve's workmanlike ways, you'll find external nipples, standard spokes, no tire limitations with a semi-hooked design, and no rider weight limits.