The Diamondback Lookout (20") junior hybrid bike is an excellent choice for the young cyclist. The lightweight rigid design, quality Shimano® components and 7-speed drivetrain provide the rider with a versatile bike that is great for riding bike paths with family and friends. This 20” bike is typically for kids between the age of 5 and 8, or 47” to 51” tall. When purchasing a bicycle for your kid, it is important to choose the right size. Your choice should be made considering the size fit, not only the age of your child. In-store sales assistants will help you to make the right choice.