Shimano’s Ultegra R8101 12-Speed Cassette provides amazing shifting under pressure, with the Hyperglide+ design moving the chain between ratios flawlessly whenever called upon. By offering 12 sprockets, Shimano has been able to reduce the jumps between gears so that it is easier to stay in the cadence sweet spot for greater efficiency and less fatigue. The combination of steel sprockets and an alloy carrier keeps the weight down whilst aiding shifting by increasing the cassette's stiffness.
Features
Lightweight 12-speed HG+ cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes
Hyperglide+ sprockets have been designed to reduce weight with improved teeth shaping providing accurate shifting and reduced wear
Wide gear range to meet the demands of all types of rider
For use with 12-speed chains
Manufacturer claimed weight: 297 grams (11-30t)
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