Using these Crankbrothers pedals is easy. Just attach them to your bike and start riding. They're great for riders with shoe sizes between US 5 - 10 or EU 37 - 43. When riding, the traction pins will keep your feet firmly on the pedals. As for maintenance, keep the pedals clean. After a muddy ride, wash them with mild soap and water. Don't use harsh chemicals as they can damage the bearings. Also, check the traction pins regularly to make sure they're tight. If any of them are loose, just tighten them with a suitable tool. With proper care, these pedals will serve you well for the full 5 - year warranty period.