Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port with Charging Bike Accessories_Phone Holders The SPD mechanism functions reliably

The SPD mechanism functions reliably even in the most extreme conditions

Proprietary vertical bike rack design securely stores your bike up off the floor against any wall

Icefil's xylitol fabric surface treatment absorbs heat from the body and converts

Holds the essentials needed for an easy repair

The elasticity of the tape allows greater flexibility in fitting different types of rims and form factors

Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port with Charging Bike Accessories_Phone Holders The SPD mechanism functions reliablyShimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount