Product Description
MAVIC COSMIC SLR 45: THE ABSOLUTE BALANCE BETWEEN DYNAMISM, RESPONSIVENESS, AND STABILITY
The DNA of Mavic: Performance without compromise
The new Cosmic SLR 45 is not just an update; it's a complete re-engineering of the most versatile wheel. With a 23 mm internal width rim and ceramic bearings, it stands out as the centrepiece for cyclists looking to maximise their efficiency on all terrains.
Lighter, more stable against side winds (Aero Wide Rim / Aero Spokes) and incredibly responsive due to the absence of rim tape (Fore Carbon), it provides predictive handling and instant power transfer. Whether you're sprinting or climbing a hill, it turns every pedal stroke into pure acceleration.
The Cosmic SLR 45 transforms your bike into an ultra-efficient racing machine, no matter the profile of your ride.
Main Features
Mavic Ceramic: premium material, premium performance
The Technology: Integration of high-precision ceramic balls for minimal friction.
The Concrete Effect: A claimed friction reduction of up to -28%. Beyond the numbers, it's a sensation of smoothness that persists mile after mile, particularly noticeable on flat sections at high speed where inertia is maintained longer.
Aero Wide Rim: Unmatched combination of speed, control, and comfort.
The Technology: An aerodynamic profile optimised for tyres of 28 to 30 mm (internal width of 23 mm).
The Concrete Effect: The tyre is better supported, avoiding the 'balloon' effect. The trajectory is more precise in descents and side wind resistance is neutralised, allowing you to stay in an aero position longer, even in unstable winds.
The Added Value: Improved comfort and grip without sacrificing aerodynamic drag.
FORE: More stiffness and a sealed system for Tubeless.
The Technology: The spokes are anchored directly into a metal insert integrated into the carbon layup, leaving the upper bridge of the rim intact.
The Concrete Effect: You achieve a rim that is 40% stiffer in torsion. On the road, this translates to zero lateral blurring during explosive accelerations.
The Added Value: Zero rim tape. You eliminate the risk of leaks, reduce peripheral weight, and make tyre installation easier. It's the most reliable tubeless solution on the market.
Specifications
Weight
Weight Pair: 1480 g
Front Weight: 675 g
Rear Weight: 805 g
Rim
Material: 100% unidirectional carbon fibre
Height: 45 mm
Internal Width: 23 mm
Drilling: Tubeless technology without rim tape Fore Carbon (front/rear 24 holes)
Braking: disc
ETRTO Size: 622x23TC
Tyre: UST Tubeless Ready
Spokes
Shape: straight, aerodynamic, tapered, anti-rotation (front and rear)
Bolts: M6
Spoke pattern: crossed by 2 (front and rear)
Hubs
Body Material: aluminium
Disc Standard: Center Lock® only
Axle Material: aluminium
Axle size: front 12x100 / rear 12x142
Freewheel: Shimano HG road / Sram XD road
Bearings: Mavic Ceramic
Compatibility
Supplied with
User guide
UST rim tape mounted on the wheel
UST valve not mounted on the wheel
Intended use
Minimum tyre size: width 28mm - max pressure 5.5Bar/80PSI
Maximum tyre size: width 64mm - max pressure 3.5Bar/51PSI
ASTM category 2: road and paths with jumps less than 15 cm
Maximum weight supported by the wheels: must not exceed 120 kg (including the weight of the bike)
