The Shimano CS-6800 Ultegra cassette brings 11-speed to the Ultegra family. It also brings a much broader size range designed to fit anyone's requirements.

• B00CABLW7C
• B0093QBABK
• Shimano RD-6800-G Ultegra Rear Derailleur
• B00E3P1USO
• B00PUE4NKY