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SHIMANO ULTEGRA - DI2 Rear Derailleur - Short Cage - SHIMANO SHADOW RD - 11-speed
Blending performance and style, the SHIMANO ULTEGRA 6800 series rear derailleurs deliver accurate shifting and light action. The RD-6870 DI2 versions offer the digital precision of SHIMANO electronic shifting.
A technological innovation of the computerized shifting system based on the DI2 concept with which is called, the SEIS (SHIMANO ELECTRONIC INTELLIGENT SYSTEM).
The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics.
The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone.
Benefits & Features
|Top-Normal spring type||Double servo||✔|
|Max front difference||16T|
|Max. low sprocket||28T|
|Min. low sprocket||23T|
|Max. top sprocket||14T|
|Min. top sprocket||11T|
|Fluoric coated link bushing||4|
|Sealed bearing guide pulley||✔|
|Sealed bearing tension pulley||✔|
|Firmware update by E-TUBE PROJECT||✔|
|E-TUBE port (pcs)||1|
|E-TUBE connector (pcs)||0|
|Average Weight||257 g|
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