Shimano%20Di2%20Dura-Ace%20Di2%20(Dual%20Integrated%20Intelligence)%20moves%20to%20the%20next%20generation.%20Tested%20in%20competition%20and%20taken%
Internal battery options for Di2 and EPS drivetrains
Shimano Dura-Ace Di2 SM-AD91 Braze On Clamp Adaptor
Shimano Shimano Di2 SM-BTR1 Battery Charger SM-BCR1 (Dura-Ace /
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Internal battery options for Di2 and EPS drivetrains