Shimano RD-6770 Ultegra Di2 10-speed SS Rear Derailleur
The advantages of Di2 (Digital Integrated Intelligence) are clear for everybody who has tested it: changing gears becomes easier, effortless and faster by simply touching the shift buttons with control at the top of your fingers.
Fast, precise and smooth electronic shifting - even under load
Easy electronic adjustment system
Crash saver function
Wide gear ratio - compatible with 11-28T cassette sprockets
Weight: 270g
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