SHIMANO SM-JC 40 JUNCTION (B) BOX 4 PORT
SM-JC40 cable junction for external wire routing
Junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box
To be mounted on bottom bracket cable guide threaded fitment
Reliable and secure water-resistant connectors
Compatible with Shimano e-tube Di2 systems
100% Original
Free Delivery
30 Days Return
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SHIMANO - JUNCTION B - E-TUBE - EXTERNAL WIRE ROUTING - 4-PORT
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.
PRODUCT SPECIFICATIONS
| MODEL NO | SM-JC40 |
| SERIES | ULTEGRA R8050 Series |
| Average weight | 8.6 |
| Type | External type |
| SD300 connector (pcs) | 0 |
| SD300 port (pcs) | 0 |
| SD50 connector (pcs) | 0 |
| SD50 port (pcs) | 4 |
TECHNOLOGIES
