Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=18013 and all 12

and all 12

Vendor Planet bike Manufacture Number 5055 Model Name Happy Hands Handlebar Diamond Joe Grips Category Grips & tape

Full Speed Ahead Vero Compact 2x Cranksets feature aluminum crank arms aluminum outer chainring and inner chromoly inner chainring

comfort and efficient moisture transport

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=18013 and all 12Shimano 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