Manufacturer may substitute components with components of equal or greater performance level The Nishiki Youth Colorado Mountain Bike will spark your sense of adventure and outdoor fun. It features a strong lightweight aluminum frame that uses 50mm of travel on the front suspension fork to deliver a smooth ride over trails and rough roads. It features a Shimano 1 x 7 speed drive train that delivers a reliable performance on both flat and hilly terrain. Mechanical disc brakes deliver great control over wet and dry conditions. This mountain bike provides wider, lightweight double wall aluminum 24" multi terrain off-road tires for solid traction. This bike takes you anywhere, through trails or around town! Features: Youth performance mountain bike Lightweight 6061 aluminum frame with internal cables and replaceable derailleur hanger Sturdy aluminum construction offers long-term durability Mechanical disc brakes offer reliable stopping power Lightweight double wall aluminum rims with 24 x 2.35" multi-terrain tires offer reliable stopping power Nishiki coil spring suspension fork with 50mm travel Shimano 1 x 7 speed drivetrain helps to provide smooth and efficient gear changes Bike weighs approximately 33 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.