With its new 23c rim, ceramic bearings and a weight of 1260g, the full carbon Cosmic Ultimate remains Mavic´s best allround performing wheelset.Features:Adaptive Layup Carbon technology:- Strong where it matters, light everywhere else.R2R carbon spoke technology:- The ultimate performance spokes.UST tubeless technology:- Traction and control. Universal Standard for Tubeless. Ready to ride tubeless system. The UST concept improves traction, control and comfort whilst reducing inertia and flats.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.R2R The ultimate performance spokes:- A single full carbon spoke from one side of the rim to the other with the hub inbetween. Perfect wheelsystem balance, lateral stiffness, and power transfer (either pedaling, braking or handling). The shape also integrates aerodynamics and vertical compliance (comfort) in the equation.Adaptive Layup Strong where it matters, light everywhere else:- Carbon is lighter than alloy, but weight always add up. Using the right amount of fibers where the rim is less stressed to reduce rim weight with no compromise on reliability, this gives wheels that are livelier and more enjoyable while climbing. Up to 70g saved per rim.Mavic Ceramic Premium materials, premium performance:- With its special properties, ceramic makes bearings spin a little faster and are more durable. Together with premium ceramic material, we use premium low-density grease paired with ultra slick seals.Specifications:Hubs:- Freewheel technology: Instant Drive 360- Bearings: Mavic Ceramic- Freewheel: Shimano HG road light / Sram XD roadRims:- Tire: UST Tubeless Ready- Height: 45 mm- Braking: Disc- Drilling: Co-molded Fore drilled inserts (front)- Internal width: 23 mm- ETRTO size: 622x23TC- Material: 100% carbon fiber with UD external layer- Warning: Lateral run out guaranteed under 0.5mm, not below.- Weight Front: 575 gramsIntended use:- ASTM category 1: Road only- Maximum weight supported by the wheels: Must not exceed 120 kg (bike weight included)- Minimum tyre size: Width 28mm pressure max. 5.5Bar/80PSI- Maximum tyre size: Width 64mm pressure max. 3.5Bar/51PSICompatibility:- Freewheel body: Convertible Shimano HG light road - Freewheel body: Convertible Campagnolo N3W - Freewheel body: Convertible Shimano MS- Front axle adapters: 12x100 Convertible to 9x100- Freewheel body: Convertible Campagnolo ED - Freewheel body: Convertible Sram Xd MTB In the box:- User guide- Wheel cover- 2 Multifunction adjustment wrench with the rear wheel