Using this bike is easy. Just hop on, pedal, and use the 21 - speed groupset to adjust your speed according to the terrain. When going downhill, use the rim brakes to slow down safely. For everyday commuting or park exploration, you can choose a comfortable speed. As for maintenance, regularly check the tire pressure. Make sure the brakes are working well. Wipe down the bike after each ride to keep it clean. Store it in a dry place to prevent rust. If you notice any issues, take it to a professional bike repair shop.