Using these pedals is easy. You can choose to use the flat side for a more casual ride or clip in your cycling shoes for a more efficient pedaling experience. When using the clip - in side, make sure your cycling shoes are compatible with the pedal's clip system. As for maintenance, regularly clean the pedals to remove dirt and mud. Check the bearings and the double seal system periodically. If you notice any excessive play or noise, it might be time to have them serviced. Also, keep the pedals dry to prevent rust and corrosion.