Mavic Crossmax SL Ultimate 25 29 Wheelset

The Mavic Crossmax SL Ultimate 25 29 Wheelset is the pinnacle of cross-country wheel design—ultra-light yet stiff, with full-carbon rims and racing-grade performance. Engineered for XC racers, this wheelset excels in climbing, accelerative handling, and precision control.

CROSSMAX SL ULTIMATE 25 – Specs at a Glance

• Weight (Pair): Approx. 1355 g (Front: ~615 g; Rear: ~740 g) :contentReference[oaicite:1]{index=1}
• Rim Construction: Full-carbon Adaptive Layup, hookless, asymmetric 25 mm internal width, weighing ~340 g per rim :contentReference[oaicite:2]{index=2}
• Tubeless System: UST-ready with included valve kit, tubeless rim tape pre-installed :contentReference[oaicite:3]{index=3}
• Hub Platform: Infinity hubs with QRM Auto bearing serviceability and Instant Drive 360 freehub—increased lateral stiffness and rapid engagement; compatible with SRAM XD, Shimano HG9, and Micro-Spline :contentReference[oaicite:4]{index=4}
• Axle & Brake Compatibility: Boost spacing (15×110 mm front, 12×148 mm rear); available in both 6-bolt and CenterLock rotor options :contentReference[oaicite:5]{index=5}
• Spokes: 24 straight-pull, double-butted spokes per wheel, laced in an efficient 2-cross pattern :contentReference[oaicite:6]{index=6}
• Max Rider & Bike Weight: Supports up to approximately 150 kg (330 lbs), bike included :contentReference[oaicite:7]{index=7}
• Tire Compatibility: Runs from approximately 30 mm up to ~64 mm wide tires; maximum recommended pressure ~59 psi :contentReference[oaicite:8]{index=8}

Design & Performance Highlights

1. Featherweight Agility: At ~1355 g, the wheelset offers explosive acceleration and climbing efficiency, ideal for XC race scenarios :contentReference[oaicite:9]{index=9}
2. Adaptive Layup Efficiency: Strategic carbon reinforcement at spoke beds allows dramatic weight savings without sacrificing stiffness or durability—resulting in responsive yet compliant handling :contentReference[oaicite:10]{index=10}
3. Sleek Tubeless Setup: The hookless rim design and pre-installed UST system simplify tubeless mounting and improve long-term air retention :contentReference[oaicite:11]{index=11}
4. Pro-Level Engagement: Instant Drive 360 freehub paired with QRM Auto bearings delivers snappy power transfer and long-term low-maintenance performance :contentReference[oaicite:12]{index=12}
5. Race-Proven Durability: Lightweight yet robust construction, vetted through pro-level testing to perform reliably in World Cup and Olympic environments :contentReference[oaicite:13]{index=13}

Final Take

The Mavic Crossmax SL Ultimate 25 29 Wheelset stands as a top-tier choice for cross-country cyclists demanding the lightest feel, race-ready responsiveness, and tubeless practicality. Its innovative carbon build, precision hubs, and pro-tested design make it an aerodynamic weapon for competition-focused riders.