Children's bicycles are all about enhancing and promoting the fundamental idea of cycling. Riding joy - a concept, a feeling, and an inspiration - is created as soon as children sit on the saddle for the first time and start pedaling. Once the passion for riding is ignited, nothing can stop them from enjoying great times outdoors with plenty of movement and unforgettable experiences. At Specialized, we understand that increased comfort opens the door to more riding fun. However, due to kids' growth spurts, the perfectly fitting children's bike has typically only been available for a brief "just right" period. Our development team researched and discovered that the arms and legs of children aged 5 to 12 grow faster than their upper bodies. Therefore, we needed to design a bike that is proportionally adjustable to maintain the perfect fit for a longer duration - introducing the Jett.