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Shimano Ultegra Di2 RD-6770 Rear Derailleur

Item No. »  SH-RD6770-BASE

MSRP: $339.99

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Shimano broke the mold with their Dura-Ace Di2 group. Effortless shifting, instant engagement, unparalleled performance. Well, now you can get electronic shifting without shelling out all that dough. The Ultegra Di2 group is a more affordable version of the Dura-Ace Di2 group, so you can enjoy many of the benefits, without the high price tag. This rear derailleur is also equipped with a built-in safety function and recalibration function in the event of impact, which keep your drivetrain working...

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