The Nakamura Glint 20" junior mountain bike is the perfect all-around bike for kids that need the freedom to ride everywhere. Whether they are riding to and from school or exploring off-road this bike is the right choice for adventurous kids everywhere. 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.