Reserve Wheels Reserve 42/49 Turbulent Aero Wheelset - 700, 12 x 100/12 x 142, Center-Lock, HG 11R, Carbon, DT 350 SPDeveloped 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 have a lifetime warranty supported by a no fault crash replacement. And in keeping with Reserve workmanlike ways, you'll find external nipples, standard spokes, no tire limitations with a semi hooked design