Shimano SM-JC40 Di2 External Frame Junction Box 4-Port
$34,29
Shimano
Shimano SM-JC40 Di2 External Frame Junction Box 4-Port 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