SHIMANO Junction B External Wire Routing 4-Port
SM-JC40
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.
FEATURES
- For external wire routing
PRODUCT SPECIFICATIONS
| MODEL NO | SM-JC40 |
|---|---|
| SERIES | DURA-ACE 9070 Series |
| Average weight | 8.6 |
| Type | External type |
| SD50 port (pcs) | 4 |
|---|---|
| SD300 port (pcs) | 0 |
| SD50 connector (pcs) | 0 |
| SD300 connector (pcs) | 0 |
