Shimano SM-JC40 Di2 External Frame Junction Box - 4-Port prodigalpottery Embrace the essence of the

Embrace the essence of the Wild West with our authentic handmade Western cowboy knife

Single door access for easy entry and exit

True to size for a comfortable wear

Stylish black sandblasted finish complements any bike design

Shimano SM-JC40 Di2 External Frame Junction Box - 4-Port prodigalpottery Embrace the essence of theDiscover the Shimano SM JC40 Di2 External Frame Junction Box, designed to enhance your cycling experience with seamless connectivity and reliability. This premium junction box is an essential component for any serious cyclist looking to optimize their bike's performance. Connects via SD50 E tube wires to four key points: front derailleur, rear derailleur, cockpit junction box, and battery mount. Ensures all Di2 components operate with the same