Shimano Ultegra CS-R8101 12 speed cassette

Shimano ULTEGRA CS-R8101 cassettes are the new paradigm in road shifting. HYPERGLIDE+ technology revolutionized off-road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while increasing to 12-gears

Features

• Model :  CS-R8101
• SERIES : Ultegra
• Type : Hyperglide+
• Rear speeds : 12
• Compatible chain : HG 12 speed
• Combinations
    - 11-12-13-14-15-16-17-19-21-24-27-30
    - 11-12-13-14-15-17-19-21-24-27-30-34
• HG spline L2 (ROAD 12-speed)
• Aluminum spider arm
• Steel gear QTY : 12

Average weight : 291 gr in 11/30T