SHIMANO SM-JC40 External Type Junction B SM-JC40
Description
              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
              
              Orders ship within 2 to 5 business days.