AUTHOR Cosmic 20 2026 10" Grey/Black/Red

The Author Cosmic 20 children's bike is designed for young cyclists from 4 years old who want to experience the joy of riding. Thanks to its aluminium frame, the bike is lightweight and easy to handle, which makes those first rides and longer trips easier for children. The frame geometry is adapted for a child's height of 115–135cm and promotes a natural riding position. The bike is equipped with 20-inch wheels and a six-speed derailleur, so it can handle riding on flat ground as well as gentle hills. The total weight of the bike is just 8.6kg, making it easy to handle not only for children but for parents too.

Geometry and Components for a Joyful Ride

The frame geometry of the Author Cosmic 20 bike is designed with a child's anatomy in mind. It ensures a natural and upright posture, which gives children confidence when handling the bike and allows them to better observe their surroundings. A smooth ride is ensured by the Shimano Tourney derailleur with a 14–28 tooth cassette, which offers enough gears for various situations. The bike is fitted with aluminium handlebars and a stem, which contribute to its low weight. Safety is supported by reliable Tektro V-Brake brakes, and the Kenda tyres on 20-inch aluminium rims provide good grip.