The Ultra Drive sprockets make such a remarkable difference in the system's speed, fluidity, and accuracy of shifting that we had to give it a new name: out with the old Exa-Drive; in with the new Ultra?Drive, a name that far better expresses the experience of these components and the improved cycling performance that is to be had with them.

• single sprockets
• galvanized
• supplied without lockring

Available Options:
Size:	12-2313-2313-26