Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=18013 Full Speed Ahead Vero Compact

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

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

5 x 81mm 6061 CNC machined pedal body

comfort and efficient moisture transport

Powerful daytime visible flashes

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=18013 Full Speed Ahead Vero CompactShimano 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