
The Mavic Cosmic SL 45 are carbon road wheels designed for everyday use, from training to quick rides. The 45 mm rim profile in unidirectional carbon, validated in a wind tunnel, aims for reduced drag and stable handling. The 23 mm internal width, UST Tubeless Ready, accommodates road tires starting at 28 mm and improves comfort on uneven surfaces. The INFINITY hubs and Instant Drive 360 freehub provide direct power transfer with simplified maintenance. Weighing 1,575 g per pair, with 24 spokes per wheel, Center Lock rotors, and 12x100/12x142 axles, you get a versatile Mavic road wheel, ready for long distances and sprints alike.
Main features
45 mm UD carbon rim profile, wind tunnel tested: speed on the flat
The 45 mm UD carbon rim and flat spokes were developed with aerodynamics experts and tested in a wind tunnel.
Goal: to minimize drag as speed increases, while maintaining stable handling in gusty conditions. You maintain a steady speed without having to expend all your energy.
Goal: to minimize drag as speed increases, while maintaining stable handling in gusty conditions. You maintain a steady speed without having to expend all your energy.
INFINITY hubs, Instant Drive 360 freewheel: sharp acceleration out of corners
The INFINITY hub optimizes stress distribution and uses 24 straight, flat spokes per wheel, laced in pairs.
The Instant Drive 360 freewheel is designed for quick engagement. QRM Auto self-aligning bearings maintain smooth operation and minimize play over time.
The Instant Drive 360 freewheel is designed for quick engagement. QRM Auto self-aligning bearings maintain smooth operation and minimize play over time.
23 mm internal width, UST Tubeless Ready: stable comfort regardless of road surface.
With a 23 mm internal width, the tire takes on a rounder shape and handles road imperfections better.
You gain comfort on long rides and uneven surfaces.
The rim is UST Tubeless Ready and comes with a rim tape pre-installed, for a clean and reliable setup.
You gain comfort on long rides and uneven surfaces.
The rim is UST Tubeless Ready and comes with a rim tape pre-installed, for a clean and reliable setup.
Key technology
Specifications
Cyclists' opinions
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Ma
Advanced (+3 rides per week)
“I’m truly impressed with the product. The wheels are absolutely spectacular and they fully met — and honestly exceeded — my expectations.
One of the things I appreciate most about Mavic is what I see as the perfect balance between price, quality, and manufacturing origin. Knowing the product comes from a brand with such a long history and strong heritage gives me a lot of confidence when buying. That tradition and reputation really matter.
I’m also a returning customer. I already own a previous set of Mavic wheels that have served me extremely well, which is exactly why I chose Mavic again. This purchase was simply an evolution to a slightly higher level within a brand I already trust.
I should also mention that I’m not a professional cyclist, but what we would call a very dedicated amateur. I ride a lot and I really put my equipment to the test, and these wheels perform extremely well.
It’s great to see a company with such a long trajectory continuing to produce outstanding products. I’m very happy with the purchase and look forward to enjoying these wheels for many years.
Thank you for making such excellent equipment.”
Ma
“Thanks so much !
The Mavic Team”
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