AR 1600 SPLINE® Feel like a pro, ride aerodynamically. Once you’ve experienced the thrill of speed that comes from aerodynamic optimisation, you won’t be able to do without it. The AR 1600 SPLINE 30 gives you exactly that exhilarating sensation, thanks to the same expertise that went into developing our top-of-the-range carbon aero wheels used by professionals. The aerodynamic advantage is further enhanced by the addition of aero spokes and concealed nipples. The 350 hub and its Ratchet system efficiently transfer the power from every pedal stroke to help you accelerate.