Using this Pedal Phoenix 3 Hardtail Mountain Bike is easy. Just hop on, adjust the seat to your comfort, and start pedaling. When you're riding on different terrains, use the Shimano Altus 8 - speed groupset to change gears according to the slope and resistance. For stopping, simply squeeze the Tektro hydraulic disc brakes gently. As for maintenance, keep the bike clean after each ride, especially the chain and gears. Check the tire pressure regularly to ensure a smooth ride. Also, inspect the brakes and the fork occasionally to make sure they're in good working condition. Avoid riding in extremely wet or muddy conditions for a long time as it can damage the components. If you notice any unusual noises or problems, it's best to take it to a professional bike mechanic for a check - up.