Weighing in at just 1380g, the Mavic Crossmax SL Ultimate 30 wheel is the dream of all cross-country racers who have only one thing in mind: performance. Developed in partnership with professional runners looking for a competitive advantage in the World Cup or the Olympic Games, it uses a 29 "(360 g) full carbon rim, which allows for quick acceleration and climbs, without compromising on rigidity and durability.
The special Adaptive Lay Up technique allows Mavic to produce carbon rims using less material between the spokes. Spoke holes are reinforced with strategically positioned carbon layers, reducing weight without compromising stiffness and strength. A lighter rim means faster acceleration, more efficient climbs and better responsiveness. The outer carbon layer benefits from Mavic's UD² design, which gives it a very specific visual identity and reinforces its durability.
Extensive field trials, carried out with the brand's professional athletes, have identified the most suitable internal width for fast and precise steering and optimal grip on fast racing tracks: 25 mm. For more technical terrains, some prefer a width of 30mm, which offers better handling. Mavic therefore makes both options available. The choice is yours and, if you wish, combine the two! For example, ride a Crossmax Ultimate 25 at the rear to improve your acceleration and efficiency, and a Crossmax Ultmate 30 at the front to gain confidence and control on tough single-track.
The carbon rim is fitted with 24 straight narrowed spokes (same spoke length everywhere), crossed in pairs for optimal power transfer and better vertical flexibility. The new, lighter Infinity hub platform optimizes lateral stiffness, and the spokes maximize power transfer. The Instant Drive 360 freehub body guarantees, with its double ratchet system, rapid engagement for more efficient acceleration out of bends.
The + product:
- Swallow the hills and accelerate faster : the new Adaptive Lay Up technique (specific layup) saves 70 g per rim. The 25mm wide rim weighs just 340g.
- Flexible and reliable steering : specific rim draping technique, guaranteeing excellent rigidity and better control downhill. Collapsed spokes, shelving crossed by two for better vertical flexibility.
- Efficient power transfer : new, lighter Infinity hub, combined with 24 straight spokes for increased stiffness and better spoke tension balance.
Details:
Use :
- ASTM Category 3: Cross Country.
- To optimize the longevity of the wheels, Mavic recommends that the maximum weight supported by the wheels does not exceed 150 kg (bike weight included).
- Recommended tire widths: 50 to 76 mm (2.0 "to 3.0").
Rim :
- Drilling: traditional.
- Internal width: 30 mm.
- Profile without hooks.
- ETRTO size 29 ": 622 x 30TSS.
- Adaptive Layup technique.
- UST Tubeless Ready.
Spokes :
- Material: steel.
- Shape: straight, flat, constricted.
- Nipples: aluminum, ABS.
- Number: 24 front and rear.
- Shelving: front and rear crossed by 2, contactless.
Versions :
- Disc standard: Center Lock.
- Hub width: Boost only (110 front, 148 rear).
Hubs :
- Hubs for Center Lock brake discs.
- Axles: front 15 x 110 Boost; rear 12 x 148 Boost.
- Infinity hubs.
- Instant Drive 360 freewheel system.
- QRM Auto automatic bearing adjustment technology.
Delivered with :
- UST valve and accessories.
- Pre-installed tubeless rim tape.
- Wheel cover.
- Spare spokes (2 per wheel).
Technologies:
- Adaptive Layup technique : a lighter carbon rim that allows better acceleration and improves performance when climbing. The ultimate solution for cross-country competition: light and manoeuvrable.
- UST Tubeless technology : Universal Standard for Tubeless traction and control. Ready-to-drive tubeless system. The UST system improves traction, control and comfort while reducing inertia and the risk of punctures.
- Instant Drive 360 Freewheel System : The new Instant Drive 360 freewheel system is ultra light and efficient. An oversized non-contact rubber seal reduces friction to a minimum, and a wide choice of adapters makes it compatible with all types of frames and axles.
- QRM Auto Automatic Bearing Adjustment Technology : Mavic Auto Bearing Quality Our latest innovation. These cartridge bearings are obviously double sealed, with C3 internal clearance. Their preload is automatically adjusted to ensure, in the long term, a perfect rotation without any play.
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