Shimano Ultegra R8150 Disc Di2 Groupset 
 
12 Speed Groupset Includes:
 
ST-R8170 Di2 Brake/Shifter with Brake Hoses
FD-R8150 Di2 Front Derailleur
RD-R8150 Di2 Rear Derailleur
BR-R8170 Disc Brake Calipers flat mount front and rear
FC-R8100 Chainset
CS-R8100 Cassette 12 Speed
CN-M8100 12 Speed Chain
BT-DN300 Internal Battery
2 x SD300 E-Tube Wires
EW-EC300 Battery Charger Cable