With its widened 23mm UD carbon rim, the Cosmic SL 45 is the most versatile of Mavic's carbon wheels, with improved comfort and performance.   Improved aerodynamics Less drag, more watts thanks to its 45mm rim profile and flat spokes developed by our aero experts and wind tunnel tested.   Even more responsive With Infinity hubs, power transfer is ultra-efficient and the wheel is even more responsive.   Unrivalled versatility The lightness of its 23mm rim and its spoking make the Cosmic SL 45 Disc the most versatile Mavic road wheel ever designed.   Rims Depth: 45mm. Rim: Carbon, Clincher, UST Tubeless Ready. Internal Width: 23mm. Brake Surface: Disc.   Hubs Front Axle: 12x100 Thru Axle. Rear Axle: 142x12 Thru Axle. Freehub: Shimano - 11 Speed. Bearings: QRM automatic setting - sealed cartridge. Rotor Mount: Centrelock.   Spokes: Spokes: Straight pull, Flat, Double Butted. Count: 24 Front, 24 Rear.   Other: Recommended tyre sizes: 25 to 32mm. Weight: 1555g per pair without tyres.