HYPERGLIDE+ cassettes revolutionized off-road shifting with perfect smoothness in upshifts and downshifts. Now it's time for technological changes in road cycling. Even during maximum efforts on climbs or racing with a friend, you no longer need to reduce pedal pressure to shift gears. In any gear, ULTEGRA R8150 drivetrains maximize efficiency thanks to larger sprockets and maintain compatibility with existing HYPERGLIDE rear hub bodies. All this while moving to 12 speeds and without increasing weight, ULTEGRA CS-R8100 cassettes are the new frontier for road bikes.

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