The Alvas Sky Hopper 20 is a light, well-made 20-inch kids' bike for roughly 5-8 year olds. Keeping the weight down is the secret to happy young riders — a lighter bike is easier to pedal, easier to control and far more fun. Simple, reliable components mean less time in the workshop and more time riding. Bring your rider into Crossroads Bicycle Co. in Carine and we'll make sure the size is right.