Shimano Dura-Ace CS-R9100 11 Speed Cassette (11-25)

The SHIMANO Dura-Ace R9100 11 speed cassette, here available in an 11 to 25 tooth version, is incredibly light. Compatible with all SHIMANO or SRAM transmissions, it is the lightest cassette of the brand and offers one of the most fluid gear changes thanks to Hyperglide technology. Staged so as to allow smooth pedaling in all circumstances, it offers a wide choice of development allowing you to be comfortable on the flat as when the road rises.