Manufacturer may substitute components with components of equal or greater performance level Features: BMX bike ideal for growing riders looking to build their skills Hi-Ten steel frame with BMX geometry is tough and agile enough for riding at the skatepark Mongoose 20-inch Hi-Ten steel fork provides responsive, skatepark-ready steering Microdrive with three-piece tubular chromoly crank, 25T chainring, and 9T cassette puts up with vigorous skatepark riding Aluminum U-brake stops on a dime for safety or control while performing tricks Aluminum rims with 20 x 2.35-inch tires are tough enough for cushy hops and drops at the skatepark 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.