The 2019 Trek X-Caliber 9 is a light andfastaluminum cross-country mountain bike that is race-ready with a 100mm Rockshox Judy Silver fork & a Shimano XT/SLX 2x 11 drivetrain. X-Caliber 9 is the top-end model in the X-Caliber family. Its a fully race-ready cross-country mountain bike built with parts designed to compete. A Rock Shox Judy Silver fork with remote lockout, a Shimano drivetrain, & a wide-range cassette make it a great choice for fast singletrack riders who want a great bike thats ready to race right out of the box. A lightweight Alpha Gold Aluminium frame, Rock Shox Judy Silver fork with remote lockout, Bontrager Kovee wheels & Boost 110 thru-axle front hub all work together to give X-Caliber 9 exceptional handling. The Shimano XT/SLX 2x 11 drivetrain has smaller jumps between gears & a clutch-equipped rear derailleur to reduce chain noise. The X-Caliber 9 is a speedy, nimble & efficient XC hardtail thats perfect for riders with a racing pedigree & anyone who dreams of covering epic distances out on the trail. This Bike Is Perfect For The rider that measures theirrides in speed & distance, & wants a fast XC bike that will help cover more trail in less time. You race, or you could see yourself getting into racing, so you want a hardtail with competition-level parts that can give you an advantage on the trail. Key Features Its a great bike for someone whos just getting into serious racing: you get high-end XC parts on an incredible frame with enough cash left over for entry fees Theres nothing as sweet as a silent ride: the clutch rear derailleur prevents chain slap, even in the rough Front & rear Boost hub spacing opens the door for high-end wheel upgrades The 31.6 mm seat tube gives you the option to install a dropper post when you want to tackle rowdier terrain