The new Shimano 105 R7170 Disc Di2 Groupset brings Di2 shifting to a new set of riders. For those who have only experienced mechanical shifting and ergonomics, SHIMANO 105 Di2 represents a transformation of the road cycling experience.
 
Shimano 105 Di2 Disc 12 Speed Groupset Includes:
ST-R7170 Di2 Brake/Shifter with Brake Hoses
FD-R7150 Di2 Front Derailleur
RD-R7150 Di2 Rear Derailleur
BR-R7170 Disc Brake Calipers flat mount front and rear
FC-R7100 Chainset
CS-R7100 Cassette 12 Speed
CN-M7100 12 Speed Chain
BT-DN300 Internal Battery
2 x SD300 E-Tube Wires, 1 x 800mm, 1 x 1400mm
EW-EC300 Battery Charger Cable