SHIMANO Junction B External Wire Routing 4-Port

SM-JC40

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
SD300 connector (pcs) 0
SD300 port (pcs) 0
SD50 connector (pcs) 0
SD50 port (pcs) 4