Mavic Cosmic Ultimate 45 Disc Brake Wheelset

R2R Carbon Spokes: Single-piece full-carbon spoke structure delivers exceptional lateral stiffness, instant power transfer, and integrated aero shaping for peak performance during acceleration, braking, and high-speed handling.
Adaptive Layup Carbon Rim: Smart fibre placement reduces unnecessary mass while retaining strength, saving up to 70g per rim for a more lively, efficient climbing feel.
Mavic Ceramic Bearings: Premium ceramic construction paired with low-density grease and ultra-slick seals provides long-lasting durability and reduced rolling resistance for a smoother, faster ride.
23mm Aero Wide Rim: Wider internal width enhances tyre shape, boosts stability at speed, lowers rolling resistance, and improves comfort and control across mixed surfaces.
Wheelset weight: 1260g (front - 575g / rear - 685g)

With its 23mm internal rim, premium ceramic bearings, and an incredibly low 1260g total weight, the Cosmic Ultimate 45 stands as Mavic’s flagship all-round carbon wheelset. Designed for riders chasing unmatched responsiveness, climbing efficiency, and aerodynamic precision, this wheelset represents the highest expression of Mavic’s engineering.

Key Technology:

Aero Wide Rim Technology: Optimised rim shaping for speed, control, and comfort with a seamless rim-to-tyre interface.
Adaptive Layup Carbon Technology: Reinforced only where required, creating a lightweight yet ultra-resilient rim.
Instant Drive 360: Super-light freewheel system with rapid engagement and low friction for snappy acceleration.
R2R Carbon Spoke Technology: A hallmark of Mavic’s ultimate wheels: full-carbon, one-piece, rim-to-rim spokes for superior stiffness and precision.
UST Tubeless System: Easy tubeless setup that boosts traction, comfort, and puncture resistance while reducing rotational weight.

Technical Specification:

Diameter: 700c
Weight (pair): 1260g
Material (rim): 100% carbon fibre with UD external layer
Rim height: 45mm
Tyre compatibility: Clincher (tube type) or Tubeless Ready
Internal rim width: 23mm
Drilling: co-molded Fore drilled insert 20 holes (front and rear)
Brake type: Disc brake
Freewheel technology: Instant Drive 360
Bearings: Ceramic
Disc standard: Centre Lock
Freehub: Shimano HG, SRAM XDR or Campagnolo N3W
Axle size: Front - 12x100mm; Rear 12x142mm
Minimum tyre width and pressure: 28mm (80 PSI)
Maximum tyre width and pressure: 64mm (51 PSI)
Maximum supported weight: 120kg (bike weight included)

What's included with the wheels?

User guide
Rim strip (pre-mounted)
UST Tubeless valves
2 Multifunction adjustment wrenches with the rear wheel

Compatibility:

Shimano HG option is compatible with Shimano Road 9, 10, 11 & 12 speed cassettes and SRAM splined 9, 10 & 11 speed cassettes.
SRAM XDR option is compatible with SRAM 11,12 & 13 speed XDR cassettes only.
Campagnolo N3W option is compatible with 9, 10, 11, 12 & 13 speed cassettes.
Front wheel is configured for forks with 12x100mm thru axle spacing. Rear wheel is configured for frames with 12x142mm thru axle rear spacing.
Centre Lock disc brake interface for compatibility with Centre Lock disc rotors.

Size	700c Wheel
Diameter	700c
Type	Wheel Sets
Weight	1260g (pair)
Brake Type	Disc Brake
Tyre Compatibility	Tubeless, Clincher
SKU	470267

Mavic Cosmic Ultimate 45 Disc Brake Wheelset

Specifications