Using your Campagnolo EKAR Crankset is easy. First, make sure you have a Campagnolo Pro - Tech bottom bracket installed as this crankset must be used with it. When riding, the narrow - wide tooth design of the chainring will keep the chain secure and provide an efficient drive. To change the alloy rings, you don't need to disassemble the whole crankset, just swap them out easily. As for maintenance, regularly clean the crankset with a mild soap and water solution. Check the external crank bearings from time to time to ensure they're in good condition. Avoid using abrasive cleaners that could damage the carbon parts. And always store your bike in a dry place to prevent rusting of the steel alloy parts.