Shimano SM-JC40 Di2 External Frame Junction Box 4-Port
$39.40
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Shimano 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 SpecificsToday's Stock Status 10 Available to ship in 2-4 Business Days UPC: 689228827448 EAN: Not available Manufacturer Part Number: ISMJC40 CY6760 154980-Q0-L
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