SHIMANO Ultegra Di2 Junction Box One Color, Internal/SM-JC41
Brand: SHIMANO
Color: One Color
Categories: Sports & Outdoors, Sports, Cycling, Parts & Components, Drivetrain Components

The Shimano Ultegra Di2 Junction Box is what is referred to as the B Junction. This is the point in the wiring system where all the component pieces converge. It's a crucial item along with the five required wire sections to operate your Ultegra Di2 drivetrain.The Ultegra Di2 Junction Box is available in two configurations -- Internal and External. The Internal style is designed to be located inside the bike frame (usually inside the down tube, tucked in from a hollow bottom bracket shell). The External version is designed to be fixed on the outside of the bottom bracket shell, usually fastened to the cable guide. Product Features <ul style="list-style-type: disc; margin-left: 25px;"> Material: plastic Type: Crankset Compatibility: 2 x 10 Compatible Components: Shimano Ultegra Di2 Weight: Recommended Use: ditching your mechanical tethers Manufacturer Warranty: 2 years

Everything needed to install and operate the new Ultegra DI2 system
E-Tube kits, batteries, adaptors and chargers sold separately

Item Package Dimensions L x W x H: 4.29 x 2.17 x 1.38 inches
Package Weight: 0.02 Kilograms
Item Dimensions LxWxH: 5 x 2.25 x 1.25 inches
Brand Name: SHIMANO
Color: One Color
Material: plastic
Suggested Users: Cycling
Number of Items: 1
Manufacturer: Shimano
Part Number: 6055
Size: Internal/SM-JC41
Date First Available: November 1, 2011