Adaptive Layup Carbon technology
Lighter carbon rim construction for faster acceleration and more efficient climbingThe Ultimate CrossCountry racing application : light and responsive
Wheels
Crossmax SL Ultimate 25 29
Built for Olympic athletes, the new Crossmax SL Ultimate is the most dynamic XC wheelset ever created by Mavic. Lighter, stiffer, faster—it’s all about going for gold.
Read full description
Pair 29 : 1340 grams
Front 29 : 605 grams
Rear 29 : 735 grams
Key benefits
Fly up climbs and accelerate faster
New carbon Adaptive layup technology shaves 70g per rim. 25mm wide rim weighs only 340g.
Stiff and smooth ride quality
Special carbon rim layup for superior rim stiffness and added control on descent. Double-butted, two-cross spoke pattern for enhanced vertical compliance.
Efficient power transfer
New lighter Infinity hub design paired with 24 straight-pull spokes for improved stiffness. Ultra-reliable ID360 dual ratchet freewheel for instant engagement helps you sprint out of corners faster.
At only 1340 grams, this is the wheel that performance-obsessed cross-country racers dream of. Developed with input from top pro racers seeking a competitive advantage at World Cups and the 2020 Tokyo Olympics, it features an ultralight full carbon 29” rim (340g) for fast acceleration and climbing without compromising stiffness and durability.
A specific carbon construction: Adaptive layup technology enabled us to handcraft these carbon rims with less material between the spokes. The spoke holes are reinforced with strategically positioned carbon layering in a process that minimizes weight without compromising stiffness and strength. A lighter rim means faster acceleration, more efficient climbing and a more responsive feel on the trail. Extensive field testing with our pro athletes determined that a 25mm inner width was ideal for a quick and precise ride quality on fast racetracks. The wider rim optimized tire grip and add confidence and control on rugged singletrack.
The rim is laced with 24 straight-pull double butted spokes (same spoke length throughout), two-crossed for maximum power transfer and enhanced vertical compliance. The new lighter Infinity hub design optimizes lateral stiffness, and the spoke lacing maximizes power transfer. Our Instant Drive 360 freewheel with a double ratchet system provides fast engagement and high stiffness to help you accelerate out of corners faster. The rear hub is compatible with Shimano HG9, Micro Spline and SRAM XD driver bodies. The Crossmax SL Ultimate 25 is available with 6-bolt or center lock brake rotors in 29” only and is compatible with a 15x110 front axle and 12x148 rear. It comes with valves, spare spokes and MTB wheel covers.
A specific carbon construction: Adaptive layup technology enabled us to handcraft these carbon rims with less material between the spokes. The spoke holes are reinforced with strategically positioned carbon layering in a process that minimizes weight without compromising stiffness and strength. A lighter rim means faster acceleration, more efficient climbing and a more responsive feel on the trail. Extensive field testing with our pro athletes determined that a 25mm inner width was ideal for a quick and precise ride quality on fast racetracks. The wider rim optimized tire grip and add confidence and control on rugged singletrack.
The rim is laced with 24 straight-pull double butted spokes (same spoke length throughout), two-crossed for maximum power transfer and enhanced vertical compliance. The new lighter Infinity hub design optimizes lateral stiffness, and the spoke lacing maximizes power transfer. Our Instant Drive 360 freewheel with a double ratchet system provides fast engagement and high stiffness to help you accelerate out of corners faster. The rear hub is compatible with Shimano HG9, Micro Spline and SRAM XD driver bodies. The Crossmax SL Ultimate 25 is available with 6-bolt or center lock brake rotors in 29” only and is compatible with a 15x110 front axle and 12x148 rear. It comes with valves, spare spokes and MTB wheel covers.
Specifications
Rims
- Material: 100% carbon fiber
- Drilling: traditional
- Internal width: 25 mm
- ETRTO size 29: 622x25TSS
- Hookless profile
- Asymmetrical rim design
- Adaptive Layup Carbon technology
- UST Tubeless Ready
Spokes
- Material: steel
- Shape: straight pull, flat, double butted
- Nipples: aluminum, ABS
- Count: 24 front and rear
- Lacing: front and rear crossed 2, contactless
Hubs
- Infinity hubs
- Instant Drive 360 freewheel technology
- QRM Auto bearing preload technology
- Hub available with 6-bolt or Center Lock® brake rotors
- Axles: Front 15X110 Boost ; Rear 12X148 Boost
- 24 teeth ratchet
Versions
- Disc standard : 6 Bolts or Center Lock®
- Hub width : Boost only (front 110, rear 148)
- Freewheel: SRAM XD, Shimano HG9, Shimano Micro-Spline
Compatibility
- Freewheel: Shimano HG9, XD or Micro Spline
- Rear axle: 12x148 Boost thru axle
- Front axle: 15x110 Boost thru axle
Compatible Adapters and freewheel bodies
- Boost : Torque Caps for Center Lock hub (V2374401)
- ID360 Shimano HG9 alloy freewheel body (V3780101)
- ID360 Shimano Micro Spline alloy freewheel body (V3990101)
- ID360 Sram XD freewheel body (V3740101)
Intended use
- ASTM CATEGORY 3 : CROSS COUNTRY
- For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels doesn't exceed 150kg, bike included
- Recommended tire sizes: 50mm to 76mm (20 to 30)
Key technologies
UST tubeless technology
Traction and control
Universal Standard for Tubeless Ready to ride tubeless system The UST concept improves traction, control and comfort whilst reducing inertia and flats
Instant Drive 360 freewheel technology
The new Instant Drive 360 freewheel system is super light and efficient A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile
QRM Auto bearing preload technology
Qualité de Roulements Mavic Auto
Our latest innovation Those cartridge bearings are of course double sealed with C3 internal clearance Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run