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Already have Dura-Ace 11s 9000 Components but want to upgrade to the Shimano Electronic Components? The Shimano Dura-Ace 9070 Di2 Road Upgrade Kit is exactly what you need to convert your Road Bikes Mechanical Groupset into an Electronic Groupset.

Shimano Dura-Ace 9070 Di2 Road Upgrade Kit Includes:

Shimano Di2 SM-BTR1 Battery
Shimano Di2 SM-BCR1 Battery Charger
Shimano Di2 SM-BMR1 Battery Mount
Shimano SM-JC40/41 Di2 Junction Box
Shimano Di2 SM-BCR1 Power Cable
Shimano Di2 EW-SD50 Rear Electric Wire Kit (Qty. 6)
Shimano Dura-Ace Di2 FD-9070 Front Derailleur
Shimano Dura-Ace Di2 SM-EW90 Junction Box
Shimano Dura-Ace Di2 RD-9070 Rear Derailleur
Shimano Dura-Ace Di2 ST-9070 Dual Control Shifters