SHIMANO Di2 Diagnostic Bicycle PC Connector
This device has two functions:
- Diagnostic scanner
Using this device, you can check the functionality of the front derailleur, rear derailleur, shifters, and electric wires, and fi nd potential trouble spots easily.
- Customize system
This tool is able to change the shifter direction. The factory-preset mode is top-normal type. You can also change the shifting side or the switches. For example, the shifting system can be set so that operating the left lever and the rear derailleur will lift the chain to a larger sprocket