Not only is the Specialized Jett 16 Single Speed one of the lightest kid's bikes on the market, it's also strategically designed to adjust to your child as they grow. Optimized to fit kinds 37"–48" in height, the Jett features an adjustable handlebar and longer seatpost to accommodate growing arms and legs. The narrower-diameter brake grips and 130mm Bridge saddle were developed from a Retül study specifically on kid sizing. The single-speed drivetrain simplifies the ride and 2" Pathfinder tires confidently roll over a variety of surfaces. With the Jett 16 Single Speed, your kid will simply love riding.