Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.

This is the correct plug-and-play wire for Shimano's E-Tube Di2 electric-shifting systems. It comes in sixteen different lengths, so choose the one(s) that's right for your Di2 E-Tube wiring configuration.

Shimano Rear Derailleur Pulley Assemblies

Shimano BT-R1A External Di2 Battery - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

- Width: 5.8 mm - Drivetrain Speeds: 11 - Color: Silver - Reusable: No

Shimano's Di2 Battery Charger Cable plugs into the Battery Charger (shown, but sold separately) so you can keep your electronic drivetrain at full power.

Shimano Chainring Bolts - For use with FC-6800 46t outer chainring - Color: Black - Length: 10 mm - Material: Aluminum - Type: Torx

- Replacement chain pins for Shimano 11-speed chains - Compatible with CN7900/7801 chains - 3 pins per pack

Shimano STI lever hoods. - Fits Ultegra ST-6700 levers only

Shimano Rear Derailleur Pulley Assemblies