Shimano Dura Ace CS R9100 Cassette 11 speed silver BIKE24 Shimano Dura Ace CS R9100 11 Speed Road Cassette 11 28T Bike Triathlon Shimano Dura Ace CS R9100 19 21 24T Cog Unit for 11 30T 11 Speed Shimano Dura Ace CS R9100 11 30T 11sp Cassette Bikebug SHIMANO Dura Ace CS R9100 Cassette for Precision Shifting. Experience the precision and performance of the Shimano Dura Ace CS R9100 11 Speed Cassette, designed for serious cyclists who demand the best. This premium cassette combines advanced materials and engineering to enhance your riding experience. CFRP alloy spider arms and 5 titanium sprockets for optimal weight savings. Wide gear range of 11 30 for versatile riding conditions. Precision engineered cogs: 11 12 13 14 15 17 19 21 24 27 30 for smooth shifting. Compatible with Shimano HG 11 12 Speed Road drivetrain systems. Elegant silver gray finish adds a sleek look to your bike. This cassette is ideal for competitive cyclists and enthusiasts seeking to improve their performance on the road. To install, simply replace your existing cassette with the Dura Ace CS R9100, ensuring compatibility with your Shimano drivetrain. Details: Range: 11 30 Cogs: 11 12 13 14 15 17 19 21 24 27 30 Color: Silver Gray