Manufacturer may substitute components with components of equal or greater performance level FEATURES: Youth mountain bike designed to help learn trail riding skills Disc brakes and a 75mm suspension fork make sure you have reliable stopping power Lightweight aluminum frame and 24" Kenda tires make this bike easy to maneuver Seat height adjustablewith no tools Shimano 1*7 smooth drivetrain Comfortable front suspension fork Instruction Manuals/Warranty Information(PDF) 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.