11 speed. Di2 R9170/R9150 Shifting System Includes: ST-R9170 Di2 Levers with hoses, R9150 Di2 Front Derailleur, R9150 Di2 Rear Derailleur, 3 port front junction box-A, 4 port rear junction box-B, 6 Wires and Battery.
Brake Calipers are Optional with Additional Charges. Rotors can be purchased separate.
Optional: Battery Charger and Battery Charger Cord Outlet.
Optional: BR-R9170 Hydraulic Brake Calipers
Optional: EW-WU111 Wireless Unit for Di2 System. (Learn More) Note: Wire is not included to Rear Derailleur and can be purchase separate.
Optional: For Shimano Battery Holders
We love this Shimano Dura-Ace R9170 Hydraulic Di2 7 piece Conversion Kit.
Buy Shimano Dura-Ace R9170 Hydraulic Di2 7 piece Conversion Kit from Texas Cyclesport, A Better Bike Ride Begins Here.