Comfort, ergonomics, stiffness and aerodynamics are the essential elements Zipp balanced in the Contour SL, and every millimeter of the shape is designed for all-day comfort and performance. The airfoil top is not only fast, it fits your hand perfectly on long climbing efforts and elegantly hides your brake and shifter cables. The ovalized hook portion of the bar fits your hand naturally, which you'll appreciate as the day wears on. Of course, the Contour SL is stiff enough to fight out a sprint after you've been in the break all day. Considering it's passed EFBe Laboratory's top performance racing standard, you know this bar is in it for the long haul.