Shimano RD-6870 Ultegra Di2 Rear Derailleurs - 11 Speed

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.

• Stringently tested with the highest quality standards
• Created with love for bikes and passion for outdoor adventures
• Made by experienced technicians using cutting-edge technology

SEIS SHIMANO ELECTRONIC INTELLIGENT SYSTEM

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.

E-TUBE

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

• Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride.
• Automatically checks for firmware updates on each startup to ensure all components are running the latest version.
• PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process.
• Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone.
• Advanced all-weather design resists rusting, stretching, and freezing.