Weighing just 1,380 g, this wheel is the dream of all cross-country competitors who have only one thing on their minds: performance. Developed in collaboration with professional athletes looking for a competitive edge in the World Cup or the Olympic Games, it features a full carbon 29'' rim, allowing for quick accelerations and climbs without compromising on stiffness and durability.

The special Adaptive Lay Up technique allows us to craft carbon rims using less material between the spokes. The spoke holes are reinforced with strategically placed carbon layers, which reduces weight without compromising stiffness and strength. A lighter rim means faster accelerations, more efficient climbs, and better responsiveness. The outer carbon layer benefits from our new UD² design, which gives it a unique visual identity and enhances its durability.

Extensive field testing with our professional athletes has helped us identify the most suitable internal width for quick and precise handling and optimal grip on fast race tracks: 25 mm. For more technical terrains, some prefer a width of 30 mm, which offers better maneuverability. We therefore offer both options. It's up to you to choose, and if you wish, to combine the two! For instance, mount a Crossmax Ultimate 25 at the rear to improve your accelerations and efficiency, and a Crossmax Ultimate 30 at the front for increased confidence and control on challenging singletracks.

The carbon rim is equipped with 24 straight pull spokes (same length of spokes all around), crossed in pairs for optimal power transfer and better vertical compliance. The new lighter Infinity hub platform optimizes lateral stiffness, and the lacing maximizes power transfer. Our Instant Drive 360 freehub guarantees, with its dual pawl system, a quick engagement for more efficient acceleration out of corners. The rear hub is compatible with HG9, Micro Spline, and SRAM XD freehub bodies.

The Crossmax SL Ultimate 30 is available only in 29'', with 6-bolt or Center Lock brake discs, and compatible with a 15 x 110 front axle and a 12 x 148 rear axle. It comes with valves, spare spokes, and a MTB wheel cover.
Main Features
Climb hills and accelerate faster
The new Adaptive Lay Up technique allows for a weight saving of 70 g per rim.
Smooth and reliable handling
Specific rim layering technique, ensuring excellent stiffness and better control when descending. Straight pull spokes, crossed in pairs for improved vertical compliance.
Efficient power transfer
New lighter Infinity hub paired with 24 straight pull spokes for increased stiffness and better spoke tension balance.