Using your Marin Bolinas Ridge 2 mountain bike is easy. Just hop on, adjust the seat to your comfort, and start pedaling. When riding on different trails, use the 3x8 speed Shimano Altus drivetrain to change gears according to the terrain. For braking, the Tektro M275 hydraulic disc brakes will give you reliable stopping power. Make sure to check the tire pressure regularly, especially before a long ride. Keep the chain clean and lubricated to ensure smooth gear shifting. Also, after riding in wet or muddy conditions, wash the bike thoroughly to prevent rust. If you notice any issues with the suspension fork or other parts, it's best to take it to a professional bike mechanic for maintenance.