The best-selling model in this category and literally a staple of the Author range. This is the Author Cosmic 20, which has been the benchmark in this class for many years. It is suitable for children around 4-6 years old and 115-135 cm tall. The lightweight duralumin frame with proven geometry, quality Shimano components and branded Tektro brakes create a proven recipe for a successful children's bike. Several generations of children have been on its handlebars and many older models are still in service. It even comes in 4 colour options, so there's something for everyone. The ideal little cyclist's partner for family outings on cycle paths and paved forest and dirt roads.