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For external DI2 wire routing, SHIMANO's SM-JC40 Junction B is the central connector for DI2 systems.

For external DI2 wire routing, SHIMANO's SM-JC40 Junction B is the central connector for DI2 systems.

Shimano Non-Series

Shimano SM-JC40 Junction B External Wire Routing 4-Port in Black

£30.99
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Shimano SM-JC40 Junction B External Wire Routing 4-Port in Black

Brand:Shimano Non-Series

Code:SMJC40

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. This means that the wires can be neatly integrated alongside the frame and gain some protection from the elements. - Shimano SM-JC40 Junction B External Wire Routing 4-Port in Black | Rutland Cycling

For external DI2 wire routing, SHIMANO's SM-JC40 Junction B is the central connector for DI2 systems.

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