Shimano Di2 Junction Box

The sm ew90 junction box features an integrated battery level indicator charging port and gear index setup switch.

Shimano di2 junction box.

Both the current and the previous generation di2 have a button on the junction box. Just because you can build a di2 system without a. If you use it combined with one of the old batteries external sm bmr1 sm bmr2 or internal sm btr2 it. Shimano s e tube di2 junction box also known as the b junction connects all your component and battery wires to make assembly much easier.

All accessories computer mount accessories tags. It s a crucial item along with the five required wire sections to operate your ultegra 6770 ultegra 6870 or dura ace 9070 di2 shift system. A b battery bt dn110 or the external. Looking at a neat solution for wiring up the new handlebar junction a the rs910.

Depending on what battery you use the button does different things. Cable guides that screw into existing holes or buy the shimano di2 wire cover. This is the point in the wiring system where all the component pieces converge. Internal or external junction box a or system informations display mtb internal or external junction box b optional.

The junction box on road bikes can be. E tube junction a built in type for frame or handlebar designed for use as a bar end on drop handlebars or with designated frames the rs910 junction is a 2 port option for internal e tube wire routing charging battery monitoring and shift mode switching. Shimano s sm ew90 b 5 port junction a mounts neatly to the bike stem and connects with e tube wires from di2 shifters accessory shifters and the downtube junction wire. Hold down a shifter for half a second or more and the leds on your di2 junction box will flash.

Planning the routing and looking at tools needed for the job. Di2 holder junction box shimano. Di2 junction box mount quantity add to cart sku. The e tube di2 junction box is what is referred to as the b junction.

It s easy to check your di2 battery s charge level. It s a crucial item along with the five required wire sections to operate your ultegra 6770 ultegra 6870 or dura ace 9070 di2 shift system. What does the button on the junction box do.