Using the Marin DSX FS Flat Bar bike is a breeze. Just hop on, adjust your seat to a comfortable height, and start pedaling. Whether you're riding on gravel paths or city streets, this bike will serve you well. When going off - road, use the dropper post feature to lower your seat for better control. On roads, you can keep it at a normal height for efficient pedaling. For safety, always wear a helmet and make sure your brakes are working properly before each ride. As for maintenance, regularly check the tire pressure; the standard 700x45mm tires should be inflated to the recommended level. Clean your bike after each muddy ride to prevent dirt from damaging the components. Lubricate the chain every few rides to keep it running smoothly. Also, inspect the flat mount disc brakes periodically and replace the brake pads when they're worn out. This way, your bike will stay in great shape and provide you with many enjoyable rides.