Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300 Belt Drive Parts & Tools 5mm x 24tpi left-hand thread

5mm x 24tpi left-hand thread - Campagnolo compatible)

Manufacturer Part Number: Y13098700

Manufacturer Part Number: CH 6902 LLB

UPC: 072774201754

Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300 Belt Drive Parts & Tools 5mm x 24tpi left-hand threadShimano Di2 Frame Junction Box Frame 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 Product Specifics Today's Stock