Mavic Cosmic SL 45 Disc Wheelset 2026

The Mavic Cosmic SL 45 Disc embodies the perfect balance between lightness, aerodynamic performance and on-road adaptability. Designed for demanding riders, these carbon wheels are built to deliver a smooth ride, agile response, and the versatility needed for everyday use.

The Cosmic SL 45 Disc excels on both flat terrain and moderate climbs. Its 45 mm profile provides aerodynamic support without compromising handling on ascents. Thanks to its Infinity hub + QRM Auto technology, it offers instant engagement, a lively response to power, and remarkable stability during sprints and accelerations.

The 23 mm wide UST Tubeless Ready carbon rim ensures reliable and easy installation while reducing rolling resistance, remaining user-friendly even for less experienced riders. Its well-dimensioned spoke pattern guarantees stiffness and durability while maintaining stable handling in crosswinds.

The Infinity hub, equipped with the ID360 ratchet freehub body, is compatible with Shimano HG, Sram XD, and Campagnolo cassettes thanks to different freehub body versions available and sold separately.

These wheels are designed, manufactured and patented by Mavic in Annecy, and entirely hand-built at their European site.

Highlights of the Cosmic SL 45

• 45 mm profile: perfect balance between aerodynamics and handling
• Generous 23 mm internal width for modern wide tires
• Instant Drive 360 freehub + Infinity hub: fast engagement and even spoke tension
• Tubeless system ready to use with easy setup
• 120 kg weight limit: suitable for demanding riders and bikes
• Controlled weight for a carbon rim of this caliber
• Center Lock disc compatibility for easy installation

Rim

• Material: 100% carbon fiber with UD outer layer
• Disc brake rim profile
• Tire: UST Tubeless and tube type
• Height: 45 mm
• Internal width: 23 mm
• ETRTO size: 622x23TC
• UST Tubeless technology (fully sealed rim that improves traction)

Spokes

• Material: steel
• Shape: straight, flat, butted (patented)
• Nipples: ABS steel
• Number: 24
• 2-cross lacing

Hub

• Hub with Center Lock disc mount (R)
• Axle Front: 12 x 100 mm
    - Quick release compatibility with adapters sold separately
• Axle Rear: 12 x 142 mm
    - Quick release compatibility with adapters sold separately
    - 12x135 mm compatibility with adapters sold separately
• Instant Drive 360 freehub body
• QRM Auto (automatic bearing preload adjustment)
• Available freehub bodies
    - Standard (Shimano-Sram with 11T or larger first sprocket)
    - Standard light (Shimano-Sram with 11T or larger first sprocket)
    - XD-R (Sram with first sprocket smaller than 11T)
    - Campagnolo ED11
    - Campagnolo N3W

Usage:

• ASTM CATEGORY 2: ROAD AND GRAVEL, JUMPS LESS THAN 15 CM
• Max weight: 120 kg (including rider and bike)

Key Technologies

• Wide aero carbon rim technology
• UST Tubeless technology (fully sealed rim that improves traction)
• QRM Auto (high-quality Mavic C3 bearings with double sealing and automatic adjustment)
• ID360 (faster engagement)

Warranty

• 2 years
• Extendable to 3 years by registering to the Mavic Care program within two months after purchase

Delivered with

• UST valves and accessories
• 12x100 mm front adapters (installed)
• 12x142 mm rear adapters
• User guide

Manufacturer weight: 1575 g