Reserve Wheels Reserve 42/49 Turbulent Aero Wheelset - 700 12 x 100/12 x 142 Center-Lock HG 11R Carbon DT 350 SPReserve Wheels Reserve 42 49 Turbulent Aero Wheelset 700 12 x 100 12 x 142 Center Lock HG 11R Carbon DT 350 SP. 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 DItalia the 42 49 wheels have a lifetime warranty supported by a no fault crash replacement. And in keeping with Reserve