Shimano Sprocket for Dura Ace 11 Speed Cassette 13 T for 12 25 28 Shimano Dura Ace CS R9100 Cassette 11 Speed 11 30t Silver Gray SHIMANO DURA ACE CS R9100 11 Speed 11 25T 28T 30T Road Cassette Shimano CS R9100 11 Sp Dura Ace 11 25 Cassette No Boundaries No Shimano Dura Ace CS R9100 11 Spd Cassette 11 30T For Sale Jual Sprocket Cassette Shimano Dura Ace CS R9100 11 Speed 11 30T. 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