Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 100mm x 100mm 9-speed triple front derailleur

9-speed triple front derailleur

and a soft silicone spout for a comfortable drinking experience

Combo: features user resettable 4-digit combination

Chromoly steel hardware

} Morph Carbon composite sole Wide Soles Compatible with Northwave Speedplay/Wahooadaptor Double air vent on the sole Two-layer construction composed by innovativePU and breathable

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 100mm x 100mm 9-speed triple front derailleurShimano 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