Shimano SM-JC40 Di2 External Frame Junction Box 4-Port

Product Description

Shimano Di2 Frame Junction Box

Product Specifications

• Dimensions (Overall): 4.0 inches (H) x 4.5 inches (W) x 9.0 inches (D)
• Weight: .11 ounces
• Bike compatibility: Universal
• Package Quantity: 1
• Warranty: Multiple Warranties and/or Time Frames Apply. To obtain a copy of the manufacturer’s or supplier’s warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869

Product Highlights

• All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
• Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
• Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
• Mounts underneath the bottom bracket shell
• MPN: ISMJC40, UPC: 689228827448