Shimano Ultegra RD-R8050 Di2 11 Speed Rear Derailleur, SS Cage

\n\t\t\tShimano Ultegra RD-R8050 Di2 11 Speed Rear Derailleur

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• \n\t\t\t\tThe removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts
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• \n\t\t\t\tDerailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts
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• \n\t\t\t\tHigh tolerance cold forged aluminium link plates and body construction is extremely light and durable
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• \n\t\t\t\tFour self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting
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• \n\t\t\t\t11-speed E-tube Di2 compatible
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• \n\t\t\t\tCompatibility (Cassette size): SS - 11/25-11-30T; GS - 11/28-11-34T
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• \n\t\t\t\tAverage weight: SS (Short cage) - 240g; GS (Medium cage) - 247g
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\n\t\tUltegra Shadow design with Di2 technology, shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear.
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\n\t\tSleek appearance with Low profile Shadow design construction reduces risk of damage in a crash.
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\n\t\tProgrammed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift.
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\n\t\tThe SS (Short cage) option is compatible with cassette ratios from 11/25T - 11-30T while the GS (Medium cage) is compatible with cassette ratios from 11/28T - 11-34T.