Mavic

Cosmic SL 45 Carbon Wheel

What Our Gearhead® Experts Are Saying:

"The combination of aero efficiency and lightweight construction makes this wheelset a dream for fast road riding. The 45mm deep rims slice through the wind, while the Infinity hubs provide smooth engagement. The tubeless setup is hassle-free, making this my top choice for performance road wheels."

Mavic’s Cosmic SL 45 Disc Wheelset is made for cyclists who demand high-speed performance across mixed terrain and race scenarios. Whether we're punching through an undulating course or chasing down a breakaway on open flats, the 45mm rim depth delivers aerodynamic efficiency without sacrificing control in variable crosswinds. Lightweight and laterally stiff, the carbon construction ensures quick acceleration and razor-sharp handling in tight packs or solo efforts.

The ID360 instant engagement freehub system transforms power into motion with zero lag, offering immediate response for sprinting out of corners or cresting short climbs. The rims feature a 19mm internal width optimized for modern road tires—particularly 25–28mm setups—maximizing rolling efficiency and cornering grip. Hookless, tubeless compatibility means smoother rides, fewer flats, and lower rolling resistance for long days in the saddle.

With disc-specific design and centerlock rotor compatibility, the Cosmic SL 45 Disc is fully tailored to today's performance road bikes. It’s our choice for race-day sharpness and everyday reliability in one sleek, responsive wheelset.