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Derived from the legendary Crossmark
SIZES HEAD CIRCUMFERENCE S 52-56
ideal for a reliable replacement
Positioned directly on the pedals
Cassette 12V SHIMANO ULTEGRA CS-R8101 SOFT-coupevent Derived from the legendary CrossmarkThe excellent shifting quality of the ULTEGRA R8100 R8101 12 speed cassette range allows you to climb, sprint and ride for long periods without easing up when it's time to think about your next gear change. The larger sprockets of the drivetrain maximise its efficiency and remain compatible with Shimano 11 and 12 speed freehub bodies. The HYPERGLIDE+ cassette revolutionised off road shifting with smooth transitions both up and down the sprocket range.
