With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes
– Compact design includes an integrated wireless unit, charger, switch
– Wider range capacity
– Max. low sprocket 34t
– LED status indicator
– Battery indicator, pairing, adjust mode etc.
– Largest Cog: 34
– Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10×1 Standard
– Chain Wrap Capacity (teeth): 39
– Rear Der/Shifter Compatibility: Shimano Road Di2
– Cage Length: Medium
– Drivetrain Speeds: 12
– Color: Black
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