Mavic Crossmax SL S 29'' Wheelset | Boost 15x110 - 12x148 mm | Center Lock | 2021 Mavic

Cross-country racing puts a lot of strain on the wheels. They must be able to support you to achieve fast and efficient climbs, to provide you with the necessary maneuverability for descents, and to allow you to find your trajectory on difficult terrain with flexibility and confidence. The Mavic Crossmax SL S is a light and versatile aluminum alloy wheel that meets all these expectations. Designed around a specific rim profile combining a 25mm internal width and Mavic's patented ISM 4D technology, this wheel boosts the performance of your bike, at a lower price than carbon wheels. The ISM 4D process includes the machining of the rim in the less stressed areas, in order to reduce the weight of the rim without compromising its solidity. The rim also benefits from Mavic's Black Shield technology, which protects it from scratches and shocks. Attack head-on and without hesitation, rocky terrain and difficult trails.

The manufacture of the rims of the Crossmax SL S model uses Mavic's Fore technology, with a completely sealed upper bridge, which makes it possible to dispense with the rim tape. Each wheel weighs 30 grams less and eliminates a tedious operation before installing a tubeless tire. The lighter Infinity hub platform allows for new lacing which increases stiffness and therefore enables better power transfer. The Instant Drive 360 freewheel body with double ratchet allows for quick engagement.

The + product:

• The best aluminum alloy cross-country wheels in their class : Mavic's ISM 4D machining reduces weight to get as close as possible to the lightness of a carbon rim, without compromising the solidity of the wheel . The lighter rim greatly reduces inertia, allowing instant acceleration.
• Increased traction and durability : 25 mm wide hookless rim profile optimized to be able to reduce tire pressure, for better grip in all conditions. Rim optimized for cross-country tubeless tires from 2.1 to 2.3''. The Black Shield treatment protects the rim against bumps and scratches.
• Tubeless system very easy to use : the rim, totally sealed without rim tape thanks to Mavic's Fore technology, facilitates the fitting and changing of tubeless tires. The upper bridge is not drilled, which reinforces the rigidity and durability of the rim.

Details :

• 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").

• Material: Maxtal, Aluminum S6000.
• Weight reduction: lightweight ISM 4D rim technology.
• Tyre: UST Tubeless and inner tube.
• Internal width: 25mm.
• 29" ETRTO size: 622x25TSS.
• Profile without hooks.
• Black Shield treatment: protection of the rim against shocks and scratches.
• Asymmetrical rim.
• Tubeless technology without Fore tape.
• SUP welding technology.

• Material: steel.
• Shape: straight, flat, tapered.
• Nipples: Aluminum, Integrated Fore.
• Number: 24 front and rear.
• Shelving: front and rear crossed by 2, without contact.

• Disc Standard: Center Lock.
• Hub width: Boost only (110 front, 148 rear).

• Hubs for Center Lock brake discs.
• Axles: Front 15x110 Boost; rear 12x148 Boost.
• Infinity hubs.
• Instant Drive 360 freewheel system.
• QRM Auto automatic bearing adjustment technology.

• Pair (29"): 1595 g.
• Front wheel (29"): 735g.
• Rear wheel (29"): 860 g.

• UST valve and accessories.
• Multifunction key (delivered with the rear wheel).
• Spare spokes (2 per wheel).
• Fore spoke wrench.

Technology:

• Maxtal aluminum alloy : lightness and robustness. Exclusive to Mavic, this specific aluminum alloy offers a better strength-to-weight ratio than the classic 6106 alloy.
• Lightweight ISM 4D rim technology : Inter Spoke Milling (milling between the spokes) 4 Dimensions. A patented process exclusive to Mavic, the ISM 4D significantly reduces weight and inertia without compromising longevity. Faster acceleration, better handling and increased resistance; the perfect combination to make the most of your outings. The smooth profile further reduces aerodynamic drag.
• Fore tubeless technology without rim tape : Stiffer and more robust. Instead of being drilled, the lower bridge of the rim is pushed on the inside, then threaded in order to allow the direct screwing of the spoke nipples and to leave the upper bridge intact.
• UST Tubeless Technology : Universal Standard for Tubeless traction and control. Ready-to-ride 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 : quality of Mavic Auto Bearings Our latest innovation. These cartridge bearings are obviously equipped with a double seal, with a C3 internal clearance. Their preload adjusts automatically to ensure, over the long term, perfect rotation without any backlash.
• Black Shield treatment (protection of the rim against shocks and scratches) : Treatment of mountain bike rims. Lifetime doubled against stone impacts and scratches.
• SUP welding technology : a stronger and smoother connection "Soudé Usiné Process". After strapping, the rim joint is arc welded. The welded joint is then machined to a smooth finish.

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