Reserve Wheels Reserve 57/64 SL Turbulent Aero Wheelset - 700, 12 x 100/12 x 142, Center-Lock, XDR/HG11, Carbon, TuneThe pinnacle of aerodynamic performance, all out speed and no compromises. The 57 64 SL wheels are lighter than ever before and give up nothing in aerodynamics, stiffness or strength. Laced with carbon spokes, these wheels are ready for huge efforts at a moment's notice. These wheels are built to climb, but climbing isn't just about weight. A mixed rim profile of 57mm front and 64mm rear maximizes aerodynamic efficiency, while reinforced carbon spoke