- Shimano SM-EW90-B Di2 Junction B Box - E-Tube, 5 Port
zoom Shimano SM-EW90-B Di2 Junction B Box - E-Tube, 5 Port
Shimano SM-EW90-B Di2 Junction B Box - E-Tube, 5 Port
The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.
Top Features of the Shimano SM-EW90-B Di2 Junction B Box - E-Tube, 5 Port
- This junction A is required to connect the shifters via E-tube wires to the down tube junction wire
- Battery level indicator feature
- E-tube EW-SD50 wires not included
- Additional charging point when using internal battery
- Gear index setup switch to allow fine tuning via shifter buttons
- Reliable and secure water resistant connectors
- Stem mounting strap included
About Groupsets & Build-kits
A groupset is a matched set of components from a single manufacturer that are designed to work well together. If you are upgrading your existing bike or specifying a new one, you can usually save money by buying a groupset rather than the individual parts. Pay close attention to whether all the parts will fit your frame - particularly the front derailleur. Most groupsets don't include hubs or pedals but there are many different configurations so read the component list carefully.
About the Shimano brand
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
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