After extensive wind-tunnel testing, Mavic delivers the Cosmic CXR 80, the choice of numerous WorldTour squads and fast riders everywhere. The 80mm-deep carbon rim uses bladed steel spokes and their own Yksion tire to achieve one of the most aero wheels in the peloton. The magic of Mavic's CXR 80 is it's nearly seamless transition between tire and brake track thanks to a special aerodynamic fairing. That tire is a 290-TPI polycotton tubular for sublime ride quality with serious durability. It uses a fast-rolling, long-wearing center tread with softer rubber infused with silica on the sides for excellent cornering grip. The wheel is silky smooth and stiff, too, thanks to the near-frictionless QRM+ hub and a solid hub/fork interface. And of course, Mavic never sacrifices ride quality or weight for aerodynamics, so the CXR 80 accelerates like a shot and climbs better than most standard wheels out there.