PART OF THE FAMILY. Out there awaits a grand adventure. Riding a bicycle is the first step towards independence, and the bike is not just an object, but a best friend, a big brother, a part of the family. From the 10" balance bike to the 26" bike, the KTM Kids Bikes are faithful companions. For 2021, the entire range has been completely redeveloped. Lightweight aluminum frames, child-friendly components, and technical details tailored to a child's anatomy have been utilized.