Mavic 2015 Crossmax SL Mountain Bicycle Front Wheel (Black - 27.5? Intl) The lowest inertia: new ISM 4D rim, Stiff: 19 mm rim, thru-axle compatible, Fore, Zicral, Efficient Ease of use: ready to ride UST standard, Mavic race proven technologies: UST, SUP, Fore, ITS-4, QRM+ For World Cup racing and fast trail riding, All 3 wheel diameters: 26?, 27.5? and 29 Hub compatibility: 9/15 up front Weight : 26? 630g, 27.5? 665g, 29? 690g (rear wheel)