Using your Pedal Buzz 16-inch kids' bike is a breeze. First, adjust the seat height so your child's feet can touch the ground comfortably. If your child is new to riding, keep the training wheels on. To stop, simply use the coaster brake by pedaling backward or the front brake by squeezing the lever on the handlebar. When your child is ready, you can easily remove the training wheels without any tools. As for maintenance, regularly check the tire pressure and make sure it's at the recommended level. Wipe down the bike after each use to keep it clean. If you notice any loose parts, tighten them up. Also, lubricate the chain every few weeks to ensure smooth pedaling. Always wear a helmet when riding to stay safe.