Shimano Junction Box SM-JC40 / SM-JC41 for Di2 – With 4 E-Tube connections
The Shimano junction box SM-JC40 or SM-JC41 for Di2 has four E-Tube connections and is used as the junction B mounted in the bottom bracket area. It can be used for all electronic groupsets from Ultegra Di2 6770 and before Dura-Ace R9250 or Ultegra R8150. SM-JC40 is for external, SM-JC41 for internal cable routing.
Information regarding the return of batteries and electrical equipment:
Information on the return and disposal of batteries and electrical equipment can be found here.
Technical Information:
- Number of E-Tube Ports:
- 4
- Number of E-Tube Connections:
- 0
Compatibility:
- Dura-Ace Di2 9070
- Dura-Ace Di2 R9150
- Ultegra Di2 6770
- Ultegra Di2 6870
- Ultegra Di2 R8050
- GRX Di2 RX815
- Alfine / Nexus Di2
- XTR Di2 M9050*
- XT Di2 M8050*
* instead of SM-BTC1 battery mount
Features:
- junction for the bottom bracket area
Models:
external:
- Type:
- for external cable routing (mounted on frame w/ bolts)
- Type:
- SM-JC40
- Manufacturer Number:
- I-SMJC40
internal:
- Type:
- for internal cable routing
- Type:
- SM-JC41
- Manufacturer Number:
- I-SMJC41
Contents:
- 1 x Shimano Di2 SM-JC40 junction box or SM-JC41
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