The HYPERGLIDE+ cassette revolutionized off-road shifting with seamless shifting and downshifting. The time has come for technological change in road cycling. Even when pushing hard on a climb or racing a friend, there is no longer any need to reduce pressure on the pedals to change gear. In any gear, the ULTEGRA R8150 drivetrains maximize efficiency thanks to larger sprockets while maintaining compatibility with existing HYPERGLIDE rear hub bodies. All this while going 12 gears and without increasing weight, the ULTEGRA CS-R8100 cassettes are the new frontier for road bikes.
