The Shimano Di2 Internal Battery Charger makes charging your Di2 electronic shifting system a snap. With its indicator lights that tell you when it's charging and when it's fully charged, you don't have to guess. Plus, a full charge takes just 90 minutes. But don't worry too much about missing a...

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Shimano's new Dura-Ace Di2 RD-R9150 11-Speed Rear Derailleur boasts a sleek profile that practically hides from the wind and finally brings the Synchronized Shift functionality honed in the trail-focused XTR Di2 system onto the road. Enabling Synchronized Shift lets the Di2 system work its magic...

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E-TUBE Junction A - Built-in type for frame or handlebarDesigned 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.

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We love the reliability, customization, and shifting precision offered by a wired Di2 setup. Every once in a while during a bike build or gruppo swap between frames, we'll run into a Di2 wire that comes up just a little too short. The EW-JC200 is a female-to-female junction box that allows...

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The SM-BTC1 Di2 Bottle Cage Battery Mount is a convenient way to integrate an externally-mounted Di2 battery onto your fame. The SM-BTC1 mounts on your frame's water bottle cage bosses, and is designed to hold our Shimano BT-DN110 battery. It's got six E-Tube wiring ports, and it keeps things...

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