Shimano Cassette CS-R8100 Ultegra 12-S (11-34)

Features:

• Faster, seamless shifts under maximum pedaling load
• Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation
• Add wider 34T spec for pro-race usage
• Compatible with new 12-speed and road 11-speed FREEHUB body
• Ratio (11-30) : 11-12-13-14-15-16-17-19 -21-24-27-30T
• Ratio (11-34) : 11-12-13-14-15-17-19-21-24-27-30-34T
• 291g (11-30T) 345g (11-34T)