The 2019 Trek X-Caliber 7 is a light & capable cross-country mountain bike with an aluminum frame, 100mm of travel & a 2x 9 Shimano drivetrain. X-Caliber 7 is the perfect entry point to fast cross country riding & racing. Its a fully capable hardtail mountain bike with expert tech where it matters most, like in the lightweight & durable alloy frame, 100 mm Rock Shox fork, Shimano drivetrain & hydraulic disc brakes. The X-Caliber 7 has a lightweight Alpha Gold Aluminium frame, Rock Shox fork with 100 mm of travel & a lockout feature, a dependable 2x 9 Shimano drivetrain, hydraulic disc brakes & wider Boost 141 hubs for increased wheel strength & better tyre clearance. This hub size is standard for higher-end wheelsets, making it easy to upgrade your wheels if youre looking for a fast way to increase performance. The X-Caliber 7 is a great cross country mountain bike at great value. It has the same features found on higher-end bikes – like internal cable routing, dropper-post compatibility, a tapered head tube & Boost hub spacing – all on a platform thats easy to upgrade down the line. This Bike Is Perfect For The rider that is new to Mountain Biking & wants a high-value bike thats perfect for local XC trails & even racing. You want to invest in the parts that make a difference in performance – frame, suspension & brakes – & want a bike you wont immediately outgrow as your skills advance. Key Features It gets you into the world of cross-country riding & racing at a great price, & its a mountain bike that can grow with you as your skills advance The sleek internal cable routing gives you clean looks, protects your cables & makes it easy to upgrade to a dropper post for even more capability Smart Wheel Sizing means youll get the fastest wheel that fits (29? wheels on larger frames, 27.5? wheels on smaller frames)