12 speed. The Ultegra cassette CS-R8100 from Shimano's new Ultegra groupset has 12 sprockets with Hyperglide+ technology and is compatible with conventional Shimano road freehub bodies as well as Direct-Engagement freehubs.
Specifications:
•Application: Road
•Gearing: 12-speed
•Gradation: 11-30, 11-34
•Sprocket Material: steel
•Freehub Compatibility: Shimano Road, Shimano Direct Engagement
Technical Information:
•Series: Ultegra R8100
•Spider: 2 / aluminium
•Recommended Chain: HG 12-speed (e.g. XT/Ultegra, CN-M8100)
Features:
- Hyperglide+ technology for perfect shifting under high load
- fast, jerk-free operation for responsive acceleration at any speed
- improved efficiency thanks to larger teeth
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