The SL-70 Aero is a unidirectional carbon handlebar is packed with the innovations for best-in-class fit, ergonomics, and aerodynamic performance. With its wing-shaped bar top, the SL-70 Aero features Zipp s latest bar refinements while building on the trend-setting aero legacy of the VukaSprint. The wing-shaped top was designed using Computational Fluid Dynamics (CFD). The difference of that design is real, saving 6.4 watts over a round-tube section bar top. Beyond aero performance, the SL-70 Aero features a 70mm reach to allow proper fit without compromising stem length and steering control. The revised 10° ramp angle to the brake hoods eliminated need for up-rotated bars. The bar also provides ample wrist clearance for riding and sprinting in drops.