Aero efficiency, quick acceleration and the improved ride quality of ust tubeless. You get it all with this disc-brake specific wheel featuring easier to use road tubeless technology and lighter weight.Improved aerodynamics45mm naca inspired rim shape minimises drag for added speedless drag, more watts thanks to its 45mm rim profile and flat spokes developed by our aero experts and wind tunnel testedreduced inertia of the lightweight rim delivers instant acceleration.Versatile performance for all road riding conditionsminimal drag, low inertia and high lateral stiffness makes it fast and efficient on all types of terrain, from the flats to mountain climbsdisc-brake-specific build for improved control and compatibility with 12mm thru axlesunrivalled versatilitythe lightness of its 23mm rim and its spoking make the cosmic sl 45 disc the most versatile mavic road wheel ever designedweightpair: 1555grear: 835gfront: 720gthe rim is engineered with a naca rim profile that's 45mm deep and 23mm wide, designed specifically for all-rounder performance on flat or hilly terrain. The rim bed shape makes it easier than ever to fit tubeless and tube-type tyres. Riding ust tubeless means no tube, so no friction, and more air volume means a smoother ride. The result is a faster ride with super low rolling resistance. Refined spokes make this wheelset 80g lighter than its predecessor, the cosmic pro carbon ust disc. Combined with the infinity hub platform, which makes the wheels feel quick...