Juego de ruedas Mavic Cosmic SL 32 Disc

The Mavic Cosmic SL 32 Disc Wheelset sits at the climbing end of Mavic's carbon road wheel lineup — a 32mm disc wheelset built around a 100% unidirectional carbon rim designed to minimize rotational weight and respond immediately when you stand out of the saddle. At $1,789, it's Mavic's accessible entry into their carbon disc road range, carrying the same core hub technology as the higher-tier SLR models while prioritizing low weight over outright aerodynamic depth.

The rim is the starting point. At 32mm deep with a 21mm internal width, it uses a NACA-inspired cross-sectional profile — a rim shape borrowed from aerospace airfoil research that Mavic applies to reduce drag at the wheel's depth. At 32mm, the aerodynamic benefit is modest relative to a 45mm or deeper profile, but the trade-off is intentional: a lighter, shallower rim carries less rotational inertia, which means faster acceleration out of corners and more responsive changes in pace on rolling terrain. The 21mm internal width is optimized for 25–32mm tires run tubeless, where the wider bead seat improves tire shape and lowers required pressure for better traction and compliance. Rim tape comes pre-installed; UST tubeless valves are included but need to be seated separately before your first ride.

At 1,495g for the pair — 690g front, 805g rear — the Cosmic SL 32 competes well for a full-carbon disc road wheelset at this price. Mavic builds the wheel with flat double-butted spokes, 24 front and 24 rear, straight-pull in a 2-cross lacing pattern. The flat profile reduces drag and saves weight compared to round spokes; the double-butting adds compliance without sacrificing stiffness at the hub and rim interfaces.

The hub design carries Mavic's Infinity geometry, which establishes a spoke lacing pattern where spokes remain non-contact at the crossing points and front and rear spoke lengths are identical across the wheelset. Non-contact lacing eliminates the spoke-on-spoke noise that can develop under hard efforts with traditionally laced wheels, and identical spoke lengths simplify tensioning during truing. Axle standards are 12×100mm front and 12×142mm rear on a centerlock disc interface — quick-release adapters are available separately from Mavic but not included in the box.

Freewheel engagement runs through Mavic's Instant Drive 360 system. A contactless rubber seal keeps friction low while maintaining consistent engagement, and Mavic's wide end cap selection means the system is adaptable across multiple freehub standards via conversion kits. The wheelset ships with an HG road freehub body for Shimano and SRAM HG 11-speed compatibility. Separate conversion kits for Shimano MS, SRAM XDR, and Campagnolo ED and N3W standards are sold by Mavic.

Bearings are Mavic's QRM Auto sealed cartridge system — double-sealed with C3 internal clearance and an automatically self-adjusting preload mechanism. The self-adjusting preload means the bearing feel stays consistent over time without manual intervention, which addresses the gradual loosening or over-tightening that can affect conventionally adjusted hubs through seasonal use. The wheel is ASTM Category 2 rated (road and offroad with jumps under 15cm) and carries lifetime warranty eligibility from Mavic. Designed and manufactured in Europe.

Tire pressure range runs from 55 PSI maximum on a 62mm tire to 97 PSI maximum on a 23mm tire — wide enough to cover pure road tubeless setups down to light gravel use on the wider end. The hooked rim bed (ETRTO 622×21TC) is compatible with standard UST tubeless tires. For climbers and riders on rolling or mountain road courses who want a carbon disc wheelset that accelerates cleanly and doesn't demand much maintenance, the Cosmic SL 32 makes a direct case at its price.