Ultegra 6870 Di2 and 6800 Rear Derailleur B-Axle Assembly
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$1799
orig: $1895 save 5%
their price $1872
current best match: Amazon
0 available in-store, 10 available online
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This B-axle assembly rebuilds the attachment point between your Ultegra 6800 and 6870 Di2 rear derailleur and your frame. Included with this kit is a new B-limit screw and holder, a commonly stripped out part.
OEM Shimano part
For Ultegra 6800 and 6870 rear derailleurs
Includes B-axle, Spring, B-limit assembly, C-clip and seals
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