Skip to product information
    Shimano E-Tube Di2 External Junction B Box

Shimano

Shimano E-Tube Di2 External Junction B Box

Shimano E-Tube Di2 External Junction B Box

Regular price $29.69
Sale price $29.69 Was $32.99 Save 10%
Shimano Logo
Color
Option

Product ID: 71203

Earn rewards points on this item / Join Now

Only 1 Items Left

 

Shop all Shimano   |   Shop all Electronic Gear Shifting

View full details

Description

Shimano E-Tube Di2 External Junction B Box

The Shimano Di2 SM-JC40 is designed to connect SD50 E-tube wires along four points; front derailleur, rear derailleur, cockpit junction and battery mount.

The B-Box is used to split the main wire from Junction A to the front and rear derailleurs. It can also be used to connect a seatpost mounted battery to the system.

Specifically designed for externally mounted systems and mounts underneath bottom bracket shell - for External systems use SM-JC41

You Might Also Like

Ratings & Reviews

>