Trek's Mt. Track 220 is a sturdy ride well equipped to please both parents and child. They'll love the nimble, fun ride, cool looks, great graphics, knobby tires and suspension fork. You'll be glad it's made with durable aluminum, choice components and that it's professionally assembled. Plus, the twist shifters and 21-speed Shimano drivetrain make it easy for your young mountain biker to climb higher and ride farther, while the linear-pull brakes provide excellent stopping power and safety. Appropriate for children 9-12 years old.