Miche Chairning Set - X2 RDWith beautiful Miche X2 carbon chainrings, you can really get up to speed on your road bike with Shimano Dura Ace 9200 cranks. The chainrings are made from CNC machined 7075 T6 aluminium and a bonded carbon disc. This sandwich construction ensures that the chainrings are highly rigid so that every watt on the pedals can be efficiently converted into propulsion, while this construction keeps the weight low. The well designed shifting lanes and climbing