Mavic Deemax DH 18 27.5 XD MTB Wheelset. The Mavic Deemax DH 18 27.5 XD MTB Wheelset is designed to continue the legacy in Downhill riding due to its success over the years in the sport. The new Mavic DH has been redesigned on the original performance intentions so it now sits in line with modern rider, frame/fork and terrain demands. The Deemax DH has always been a superior downhill wheelset and this generation of wheels continues that trend, but can now handle any terrain and trail riding situation you can imagine. This specific version of the Deemax DH wheelset features a SRAM XD DH driver freewheel, which means it is compatible with SRAM XD cassettes Optimal Wheel Stiffness, Exceptional Power Transfer. The Deemax DH has been designed to feature an internal rim width of 28mm, which provides optimised tyre support and creates a tyre profile that increases traction and grip compared to narrower rim widths in the past. Both the front and rear wheels are laced using 28 ultra-light straight pull bladed spokes. This creates the optimum wheel stiffness and provides exceptional power transfer with the added benefit of aerodynamic properties from the bladed spoke profile Mavic Structural Integrity. Developed with and for DH world cup racers, this wheelset stands testament to the structural technology being developed by Mavic for the Downhill and Freeride genres of the sport; they have designed a wheelset to handle all trail situations at the fastest speeds. To increase responsiveness and control, these wheels feature ISM 4D technology, which involves the precise removal of material from the rim to make it lighter without effecting structural strength in any way. The rims are also fully UST Tubeless compatible and offer the highest levels of strength and durability as they roll on some of the finest podium proven hubs in the industry Features: Rims: Material: Maxtal Use with Mavic Tubeless Tape Rim Profile: Hookless Drilling: Fore Joint: SUP Weight Reduction: ISM 4D Internal Width: 28mm Valve Hole Diameter: 6 5mm Tyre: UST Tubeless and TubetypeSpokes: Material: Steel Shape: Straight pull, bladed Count: 28 Lacing: 3-crossHubs: Front & Rear Hub Body: Aluminium Hub Spacing: Front: 20mm; Rear: 12×150/157mm Sealed cartridge bearings Freewheel: ITS-4 SRAM XD DH AlloyWeight: Pair: 1 95kg Front: 915g Rear: 1 03kgTechnologies: 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 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. ZICRAL: A specific aluminium alloy that provides spokes with a higher stiffness-to-weight ratio while being stronger. FORE: Instead of being drilled, the lower rim bridge is pushed up on the inside, then threaded to enable the spoke nipples to be directly screwed in, leaving the upper rim bridge intact. QRM+ (Qualité 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. MAXTAL: Exclusive to Mavic, this specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World’s Largest Online Bike Store.