Shimano Di2 Bottom Bracket Junction Box Internal JC41
| Article number: | MS08129 |
| Availability: | Out of stock |
| Available in store: | Check availability |
- SM-JC41 E-tube cable junction for internal wire routing
- Junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box
- To be positioned neatly inside frame tubing when connected
- Cables sold separately
- Reliable and secure water resistant connectors