Shimano EW-JC200 Junction (2 port) E-Tube Wire Connector Model=Alivio SL-M3100 Left Shifter Frames using a standard M10x1

Frames using a standard M10x1 threaded derailleur hanger

Misc Rear TA 12x142mm Campagnolo

Quickly swap ring sizes with an easy to use tool (sold separate)

and all of the style

Shimano EW-JC200 Junction (2 port) E-Tube Wire Connector Model=Alivio SL-M3100 Left Shifter Frames using a standard M10x1Shimano Di2 Frame Junction BoxFrame Junction Box connects via SD50 E tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com