The Mavic Crossmax SL Pro is the first mountain bike wheel to use Mavic patented ISM 4D technology. This means machining around the rim, which reduces weight and inertia to offer a more dynamic ride. Features: Rims Material: Maxtal Joint: SUP Drilling: Fore Weight reduction: ISM 4D Valve hole diameter: 6.5 mm Tyre: UST Tubeless and tubetype Internal width: 19 mm Size: 27.5" Disc brake specific profile Spokes Material: Zicral Shape: Straight pull, bladed Nipples: Fore integrated aluminium Count: 20 front and rear Lacing: Front crossed 2, rear Isopulse Hubs Front body: carbon with aluminum flanges Freewheel: ITS-4 alloy Sram XD Compatible (XX1-X01) with optionnal kit Shimano 11 speed compatible Adjustable sealed cartridge bearings Weight: 1470g (pair without tyre) Key Technologies: ISM 4D (Inter Spoke Milling 4 Dimensions): An exclusive Mavic patented concept, ISM 4D significantly reduces weight and inertia without compromising durability. UST TUBELESS READY: The UST concept improves traction, control and comfort while reducing inertia and flats. The 'tubeless ready' construction results in a lighter tyre for improved performance. ITS-4 (Instant Transfer System 4): Using 4 pawls working 2 by 2, the system provides a more dynamic ride, thanks to a very fast engagement. Its versatility makes it compatible with all kinds of frame retention system. FORE: Instead of being drilled, the lower rim bridge is pushed up on the inside, and then threaded to enable the spoke nipples to be directly screwed in it, leaving the upper rim bridge intact. ISOPULSE: The spokes are laced radially on the drive side and crossed 2 on the non-drive side to maximise drive side dish, thus providing a better spoke tension balance between left and right flanges. QRM+ (Qualite de Roulements Mavic +): Our most demanding level. Those cartridge bearings are of course double sealed with C3 internal clearance, and topped with a micro-adjustability system. ZICRAL: A specific aluminium alloy that provides spokes with higher stiffness-to-weight ratio while being stronger. MAXTAL: Exclusive to Mavic, this specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy. SUP (Soude Usine Process): After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish.
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