Using the Roubaix SL8 Comp is a breeze. Just hop on, adjust the seat to your comfort, and start pedaling. When shifting gears, use the Shimano 105 Di2 electronic shifters for smooth transitions. The hydraulic disc brakes provide great stopping power, so you can brake safely when needed. As for maintenance, keep the bike clean after each ride, especially the chain and gears. Wipe off any dirt or grime. Check the tire pressure regularly to ensure a smooth ride. Also, have the bike serviced by a professional at least once a year to keep it in top condition. And remember, when riding, always wear a helmet and follow traffic rules for your safety.