Using this Norco mountain bike is a breeze. First, adjust the seat height so your child can comfortably reach the pedals. Then, check the brakes before each ride to make sure they're working well. When riding, encourage your child to shift gears smoothly to handle different terrains. As for maintenance, keep the bike clean after each ride. Wash it with a mild soap and water, and dry it thoroughly. Lubricate the chain regularly to ensure smooth shifting. Also, check the tire pressure often to avoid flats. If you notice any issues with the suspension or brakes, take the bike to a professional bike mechanic.