Trail-tough alloy tubes, the latest in Trek trail bike frame tech & a 130mm of travel with a RE:aktiv shock make it a great choice for riders who want a bike that can handle everything from serious all-mountain riding to XC races. RE:aktiv is firm when youre pedalling & plush over bumps It doesnt box itself into a category: Fuel EX brings trail bike plushness with an XC race bike feel for our most versatile mountain bike whip Its great for riders who dont want to do just one kind of mountain biking, but want to explore everything from XC marathons to epic descents Internal cable routing & Control Freak Cable Management make it easy to spec with quality trail bike tech, like a dropper post