The rechargeable lithium-ion battery SM-BTR2 is mounted internally in the frame or seat post for a clean look. Charging is easy with the SM-BCR2 battery charger that connects via the SM-EW90 junction box, so you don't have to worry about removing your seatpost for charging. Requires SM-BCR2 battery charger sold separately.
Shimano Dura-Ace 9070 Front Derailleur
Shimano Dura-Ace 9070 Front Derailleur Adapter
Shimano Dura-Ace 9070 Rear Derailleur
Shimano Dura-Ace Di2 ST-9070 Shifters
Shimano Dura-Ace FC-9000 Crankset
Shimano Dura-Ace SM-BB9000 Bottom Bracket
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