Shimano Ultegra Di2 RD-R8150 Rear Derailleur - 12-speedUltegra R8100 Leave Time Behind When developing the Ultegra R8100 series, Shimano took a holistic and 100 % performance oriented approach, because great speed means great responsibility. Faster than ever before, the 12 speed road groupset scores with unparalleled control and comfort anytime and anywhere whether in an everyman race, on the hunt for a personal best time or on a companionable ride. As with the Dura Ace R9200, not only does Hyperglide+

Color : Black

Model No: FC-U6000-2

not hub bolt mount

Combination (11-32T): 11-12-13-14-16-18-20-22-25-28-32T

- Changed more powerful than mechanical systems

which reduces crash vulnerability and improves shifting performance

accessories: SM-AD91 adapter (for FD-R7100-F)

Includes a mini 4 mm hex key for self-maintenance

(S/M) - 269 g

Rear speeds                    : 11

Reach adjust

Formulated with protein enzymes to thoroughly remove protein stains