Shimano EW-JC304 Di2 Junction Box – 4 Ports, Use With EW-SD300

Original price was: $34.00.Current price is: $10.19.

SKU: 4PO39566925K Category: Parts & Accessories

Description
Reviews (0)

Description

Details

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 .