Mavic Cosmic SL 45 Wheelset

The Mavic Cosmic SL 45 Disc Wheelset is engineered to deliver a balanced blend of aerodynamic efficiency, manageable weight, and confident handling, making it one of the most versatile options in Mavic’s Cosmic SL lineup. Designed for fast group rides, racing, and demanding endurance miles, the SL 45 Disc performs equally well on climbs, rolling terrain, and high-speed descents.

At the center of the Cosmic SL 45 Disc is a 45mm full carbon rim, a depth that sits squarely in the aerodynamic sweet spot—deep enough to provide meaningful drag reduction, yet shallow enough to remain stable and predictable in crosswinds. This makes the wheelset well suited for real-world road conditions where efficiency and control must coexist.

Optimized for modern tubeless road tires, the SL 45 Disc supports wider tire widths to improve rolling efficiency, cornering grip, and ride comfort. The tubeless-ready design allows lower tire pressures, enhancing traction and reducing puncture risk without compromising speed on smooth pavement.

Mavic’s proven carbon construction delivers reliable stiffness for efficient power transfer while maintaining enough compliance to reduce fatigue on long rides. Paired with Mavic’s dependable hub system and smooth-rolling bearings, the Cosmic SL 45 Disc offers consistent performance for riders seeking carbon aero benefits in a durable, everyday-ready package.