Shimano SM-JC40 Junction Unit For External Cables

For external Di2 wire routing, Shimano’s SM-JC40 Junction B is the central connector for Di2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4-port SM-JC40 junction, which is mounted under the bottom bracket.

FEATURES

• For external wire routing

PRODUCT SPECIFICATIONS

Model No: SM-JC40
Series: Dura-Ace R9150 Series
Average weight: 8.6 grams
Type: External type
SD50 port (pcs): 4
SD300 port (pcs): 0
SD50 connector (pcs): 0
SD300 connector (pcs): 0

ABOUT SHIMANO

In response to surging demand for global environmental preservation, bicycles now attract attention as the most eco-friendly means of transport. Shimano are dedicated to supply high-quality and high-performance components for different types of bicycles made in various countries and regions of the world, ranging from bicycles for the world’s top racers to daily users.