Shimano Di2 4-Port Junction Box
Product information
28.99
Description
Shimano Di2 Frame Junction Box FEATURES:
- 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