Features: Adult performance mountain bike Lightweight 6061 aluminum frame with tapered head tube, internal cables, dropper post ready, replaceable derailleur hanger Sturdy aluminum construction offers long-term durability Mechanical disc brakes offer reliable stopping power Lightweight double wall aluminum rims with 27.5/29" x 2.35" multi-terrain tires offer reliable stopping power Comfortable SR/Suntour XCT30 suspension fork with 100mm travel MicroShift 2 x 8 speed drivetrain helps to provide smooth and efficient gear changes Bike weighs approximately 34 lbs. NOTICE: Used Bikes and/or bikes purchased online that have been assembled are non-returnable. We strongly recommend that a professional bicycle mechanic properly assembles, repairs, and maintains the bicycle. Dick's Sporting Goods will provide free in-store assembly service by a certified technician for any bicycle purchased on our website or in our stores (proof of purchase required). If you choose to assemble the bicycle yourself, Dick's Sporting Goods is not responsible for injuries or damages resulting from improper assembly.