Mavic Cosmic SL 45 Disc Wheelset

What Our Gearhead® Experts Are Saying: "I’ve been running the Cosmic SL 45 Disc wheels for a mix of long training rides and fast group sessions, and they’ve hit that sweet spot between aero gains and day-to-day rideability. They’re stiff and responsive under power, but light enough for climbing. The tubeless setup is straightforward, and once you get them rolling, they hold speed incredibly well." We want wheels that can handle it all—fast flats, steep climbs, and endless training miles—and that’s exactly what the Mavic Cosmic SL 45 Disc wheelset delivers. Crafted from unidirectional carbon and fine-tuned in the wind tunnel, these wheels cut through the air with reduced drag, helping us ride faster and conserve watts when it matters most.Equipped with Mavic’s INFINITY hubs, they feel snappy and efficient with every pedal stroke, while the wide 23mm internal rim pairs beautifully with modern high-volume tires for a stable, confident ride. Whether we’re tackling a century, chasing KOMs, or mixing it up on varied road surfaces, the Cosmic SL 45 Disc keeps us rolling smooth, fast, and in control.