Why should lightweight bike frames remain for adults only? This slim aluminium-framed Giant ARX 20 children's bike is the lightest in its category and has a stable frame geometry that makes it particularly easy for youngsters to ride. The bike is suitable for riding in the woods or on asphalt.Made by Giant, the world's largest bicycle manufacturer.Details:Frame: aluminiumFrame size:45 cm - suitable for riders between 120 and 140 cm tallShimano Altus gearshiftNumber of gears: 8.Brakes: V-brakesWheel weight: 8 kg