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.Features:Infinity hub design:- Efficient power transfer thanks to optimised non-contact spoke lacing (no noise under load) and tension distribution. The length of the spokes at the front and rear is identical. Maintenance is easy thanks to a tool-free solution.QRM Auto bearing preload technology:- Those cartridge bearings are of course double sealed with C3 internal clearance. Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run.Instant Drive 360 freewheel technology:- The new Instant Drive 360 freewheel system is super light and efficient. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile.Aero Wide Rim Technology:- Unmatched speed, control, and comfort combo.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.Specifications:Rims:- Tire: UST Tubeless Ready- Braking: Disc- Internal width: 23 mm- Drilling: Traditional (rear 24 holes)- Material: 100% Unidirectional carbon fiber- Height: 45 mm- ETRTO size: 622x23TC- Weight Rear: 845 gramsSpokes:- Shape: Straight, flat, constricted (rear)- Lacing: Crossed 2 (rear) - Nipples: Steel, ABSHubs:- Bearing technology: QRM automatic setting sealed cartridge- Axle size: Rear 12x142 Convertible to quick release with adapters - Axle material: Aluminum- Body material: Aluminium- Freewheel: Shimano HG road / Sram XD road- Body design: Infinity- Disc standard: Center Lock® onlyIntended use:- ASTM category 2: Road and offroad with jumps less than 15cm- Maximum weight supported by the wheels: Must not exceed 120 kg (bike weight included)Compatibility:- Freewheel body: Convertible Shimano HG light road- Freewheel body: Convertible Campagnolo ED - Freewheel body: Convertible Campagnolo N3W - Rear axle adapters: 12x142 Convertible to 9x135 - Freewheel body: Convertible Shimano MSIn the box:- User guide- Rim tape mounted on wheel