BUILD KIT:

• LEFT SHIFTER: Shimano Ultegra ST-R8170/BR-R8170 Di2 Shift/Brake Lever and Hydraulic Disc Caliper – Left/Front, 2×12-Speed, Flat Mount, Black
• RIGHT SHIFTER: Shimano Ultegra ST-R8170/BR-R8170 Di2 Shift/Brake Lever and Hydraulic Disc Caliper – Right/Rear 2×12-Speed Flat Mount Black
• FRONT DERAILLEUR: Shimano Ultegra FD-R8150 Di2 Front Derailleur – 2×12-Speed Braze-on Down Swing For 50-54t Max Black/Silver
• REAR DERAILLEUR: Shimano Ultegra RD-R8150 Di2 Rear Derailleur – 12-Speed
• CASSETTE: Shimano Ultegra CS-R8101 Casette – 12-Speed Silver [SELECT SIZE]
• CHAIN: Shimano Ultegra / XT CN-M8100 Chain – 12-Speed, 138 Links, Silver
• BATTERY: Shimano BT-DN300 Built-In DI2 Battery – For Dura-Ace 9150 and Ultegra R8150 Systems Compatible with SD300 Wires
• WIRES: Shimano EW-SD300 Di2 eTube Wire: (1) 750mm and (1) 1200mm
• CRANKSET: not included

You will need an EW-EC300 charging cable which can be purchased separately if you don’t already have one.