Each pneumatic tire on this 14-in kids bike is built in five layers: a rubber outer, a buffer layer, cord ply, an inner tube and a protective layer, which is what keeps them rolling over gravel without splitting. The handlebar adjusts from 26 in to 28.5 in and the saddle from 20 in to 24 in, fitting riders 37.5 in to 43.5 in tall. A hand brake sits close to the grip and pedaling backward stops the bike. The basket lifts off when not wanted, a chain guard shields legs, and the seat carries up to 99 lb