SHIMANO SM-JC40 External Type Junction B SM-JC40

Product Description

This rear side junction is designed for exterior use and can be screwed to the frame of your bicycle. It is specifically intended for mounting under the bottom bracket, providing a secure and reliable connection for your bike's electronic wiring system.

Product Specification

Connectors: 4 locations
Compatible EW: EW-SD50
Model No: SM-JC40