Mavic XA Pro BOOST 29 MTB Wheelset 2018

Mavic XA Pro BOOST 29 MTB Wheelset. The Mavic XA Pro BOOST 29 MTB Wheelset provides the highest levels of aluminium mountain bike trail performance. Constructed using Maxtal, the exceptional performing aluminium alloy blend specific to Mavic. This material provides an extremely strong and durable rim, which rolls fast whilst being extremely resilient to the harsh terrain and speeds of modern mountain biking Maximum Power Transfer and Efficiency. The XA Pro features a superbly performing rim combined with the podium proven ITS 4 freehub system that provides maximum power transfer and efficiency from the rear wheel. The wheels roll on QRM bearings, which are sealed from the environment, but are still easy to service and maintain. To lace this wheel together and to provide maximum stiffness and responsiveness; Mavic have used their premium Zicral spoke design; they are guaranteed to keep your wheels spinning true no matter what riding conditions you end up exploring throughout the season. The addition of the Boost axle spacing increases the wheel builds overall strength and rigidity to the highest levels in the world of modern mountain bike technology Increased Rolling Efficiency. To optimise performance, the XA Pro has undergone ISM 4D weight reduction machining. This process removes material between the spoke holes on the rim to reduce the overall weight of the rim without effecting the strength, stiffness or durability in any way. This weight reduction process not only makes the rim lighter, it also increases the rolling efficiency of the wheel, which provides greater performance and makes riding more fun Features Rims MaterialMaxtal Use with Mavic Tubeless Tape DrillingTraditional Internal Width 25mm Weight Reduction ISM 4D Joint SUP Valve Hole Diameter6 5mm TyreClincher UST Tubeless, TubetypeSpokes MaterialZicral ShapeStraight pull, round, double butted Count24 front and rear Lacing2 crossHubs Front & Rear Hub BodyAluminium Axle MaterialAluminium Hub Spacing Front 110mm; Rear 148mm Sealed cartridge bearings FreewheelITS 4 AlloyWeight Pair1 69kg Front785g Rear905gTechnologies ITS 4 Instant Energy Transmission Using 4 pawls working 2 by 2, Instant Transfer System 4 provides a more dynamic ride, thanks to a very fast engagement. Its versatility makes it compatible with all kinds of frame retention system. MAXTAL Exclusive to Mavic, this specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy. ISM 4D Inter Spoke Milling 4 Dimensions An exclusive Mavic patented concept, ISM 4D significantly reduces weight and inertia without compromising durability. Quicker accelerations, better handling and more resistance; the right mix to make the most of any ride. The smooth profile also helps reducing aerodynamic drag. 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. QRM Qualit de Roulements Mavic Mavic's most demanding level. Cartridge bearings are of course double sealed with C3 internal clearance, and topped with a micro adjustability system BuyMavic Wheels & Tyresfrom Chain Reaction Cycles, the World's Largest Online Bike Store.