Mavic Cosmic SL 40 RB QR Wheel

Climb, sprint, and cruise faster with the Cosmic SL 40 Wheelset—lightweight carbon built for all roads

What Our Gearhead® Experts Are Saying:

"The Cosmic SL 40 hits the sweet spot—light enough to fly up climbs, fast enough to hold speed on the flats. Setup with UST tubeless is easy, and they feel incredibly responsive, especially with the new Infinity hub. For rim brake bikes, this is as good as it gets."

Whether we´re hammering mountain switchbacks or rolling through high-speed stretches of tarmac, the Cosmic SL 40 Wheelset brings the perfect blend of lightweight climbing prowess and aerodynamic efficiency. With a 40mm NACA-inspired rim profile and Mavic´s refined UST Road tubeless system, it´s fast, responsive, and impressively smooth across variable surfaces.

New flat double-butted spokes and the Infinity hub platform cut rotational weight and boost stiffness, giving us punchy acceleration and effortless speed through corners. Engineered specifically for rim brakes, the carbon brake track uses Mavic’s iTgMax technology for confident stopping in all conditions. From solo efforts to big days in the saddle, the Cosmic SL 40 brings race-ready performance to every ride.

Details

• Carbon rim brake wheelset with all-around road performance and UST tubeless compatibility
• 40mm deep NACA-inspired aero rim balances drag reduction and low weight
• New lighter spoke design increases stiffness and improves responsiveness
• iTgMAX carbon brake track delivers reliable braking in wet and dry conditions
• UST Road tubeless system enhances rolling speed, grip, and flat protection
• Infinity hub platform offers precise handling and quick engagement
• Quick-release axle setup compatible with standard road bikes
• Includes carbon-specific brake pads, rim tape, valves, and adjustment tool
• Item #MAVZ2BO

Tech Specs

Rim Material

100% carbon fiber

Wheel Size

700c

Rim Type

UST Tubeless Ready

Rim Depth

40mm

Rim Width

[internal] 19mm

Brake Compatibility

rim

Hubs

Infinity

Front Axle

9 x 100mm quick release

Rear Axle

9 x 135mm quick release

Spokes

flat double-butted steel

Spoke Nipple

steel

Spoke Count

[front] 18, [rear] 24

Max Rider Weight

265lb

Claimed Weight

[pair] 3lb 8oz (1600g), [front] 1lb 9oz (705g), [rear] 1lb 15.5oz (895g)

Manufacturer Warranty

2 Years (Lifetime with Registration of Free Mavic Care Program)

Activity

cycling