Mavic Cosmic SLR 45 Disc Carbon Road Bike Wheels Tubeless Ready

The Mavic Cosmic SLR 45 Disc Wheels are engineered for road cyclists who demand speed, efficiency, and exceptional performance in every ride. Featuring a 45mm deep, 26mm wide NACA airfoil rim profile optimized for disc brakes, this carbon wheelset cuts through the wind with remarkable aerodynamic efficiency while maintaining a lightweight design at only 1440g. The UD2 external carbon layer not only enhances durability but also reduces rim laminate weight, saving an additional 15 grams per rim for an overall lighter, faster wheel.

Meticulously crafted with Mavic's exclusive Fore Carbon technology, these wheels offer increased stiffness and superior power transfer, ensuring every pedal stroke translates into forward momentum. The patented elliptical aero spokes and Infinity hub design optimize spoke tension and reduce drag, while the Instant Drive 360 freewheel system provides instant engagement and reliable performance. The UST tubeless-ready rims simplify tyre installation and improve ride comfort by reducing friction and the risk of punctures, making them an excellent choice for long-distance endurance rides and competitive racing alike.

Designed and handmade in Europe, these wheels combine innovative technologies with precision craftsmanship. From the sealed QRM Auto cartridge bearings that maintain smooth rotation over time, to the tubeless tapeless rim bed that eliminates the need for rim tape, every detail is optimized to deliver exceptional performance, reliability, and ease of maintenance. Whether you’re accelerating on climbs or pushing hard on flat sections, the Cosmic SLR 45 Disc Wheels provide a confident, responsive ride.

What It’s Good For

• Maximizing aerodynamic efficiency with a 45mm deep NACA rim profile for reduced drag
• Enhancing climbing and acceleration through ultra-lightweight carbon construction and patented elliptical aero spokes
• Improving power transfer and stiffness via Fore Carbon technology and optimized spoke tension with Infinity hub design
• Providing superior ride comfort and puncture resistance with UST tubeless-ready rims and tapeless Fore Carbon technology
• Ensuring quick and reliable engagement with Instant Drive 360 freewheel technology
• Facilitating easy tyre mounting and maintenance with a rim bed shaped for simplified tubeless setup

What It’s NOT Good For

• Use with rim brake systems—designed exclusively for disc brake compatibility (Center Lock only)
• Heavy off-road riding or jumps exceeding 15cm, as per ASTM category limitations
• Tyres outside the recommended pressure and size range, which may compromise safety and performance
• Non-UST tubeless tyres without appropriate compatibility, as the rims are optimized for tubeless-ready setups
• Applications requiring quick release front axle without using supplied adapters, given the default thru-axle configuration

Frequently Asked Questions

Are these wheels compatible with all disc brake systems?
The Mavic Cosmic SLR 45 Disc Wheels are designed specifically for Center Lock disc rotors only. They are not compatible with 6-bolt rotor mounts.

Can I use traditional inner tubes with these wheels?
While these wheels are optimized for UST tubeless setups for better efficiency and puncture resistance, you can use traditional inner tubes if preferred. However, you might not experience the full benefits of reduced rolling resistance and enhanced comfort.

What axle sizes do these wheels support?
The front axle accepts a 12x100mm thru-axle, and the rear axle accepts a 12x142mm thru-axle. They can also convert to quick release using the supplied adapters, allowing compatibility with different frame standards.

How durable are these wheels for everyday road use?
Constructed with high-quality UD carbon fiber and reinforced with Fore Carbon technology, these wheels offer excellent durability and stiffness suitable for regular road riding and competitive racing. They are handmade and rigorously tested in Europe to ensure long-lasting performance.

Can I use these wheels with Campagnolo drivetrains?
Yes, the wheels come with driver bodies compatible with Shimano and SRAM XD-Road, and can be converted to Campagnolo with an optional driver body available separately.