For regular maintenance on your bike, the first step is to keep your bike clean and free from mud and debris. Lubricate the mechanisms (chain, chainring, breaks, derailleurs) so they continue to work correctly. Index your gears by adjusting the derailleurs for smooth movement. You may need to replace your gear cables if they are old. Inflating your tires to the correct pressure is also part of basic maintenance. Finally, check your bike's components such as the bolts to ensure they are tightened properly. Replace any components that are old or worn.