Kids bikes is ideal for kids height 42-56 inches, classic style steel frame, lightweight but high strength for kids to control, great for mountain biking, recreational cycling Gears Shimano 7-speed drivetrain offers soft shifting and full control for young riders, intuitively easy-to-use Shimano Revo twist shifter; a flick of the wrist changes gears for easy pedaling Wide, 2.1 in. all-terrain tires with strong puncture ressistance soften the little bumps and stick to the trail for a smooth, stable ride Bicycle weight limit is 80 lbs. total, including rider + all gear carried on the bike and on the rider's body Easy to Assemble. If there any issues about the bikes, please feel free to Contact us, customer services are committed to 100% satisfaction for each buyer.