Manufacturer may substitute components with components of equal or greater performance level Features: Youth bike designed to help kids learn how to ride Coaster brakes help teach your child proper biking technique Adjustable training wheels are included for added stability Reflectors on the front and back for added safety Padding on the handlebar and headset offer optimal comfort Adjustable seat height lets you customize to your child’s size 12” wheels are made for riding on sidewalks or around the neighborhood Ideal for riders 3-5 years old Style: NKI00Y12G 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.