Shimano Ultegra di2 R8070 groupset

Taking technology from the Dura-Ace Di2 groupset while at the same time refining the previous version of their Ultegra Di2 groupset Shimano have tweaked the ergonomics of their Di2 shifters and included more shifting options to enable you to fine tune your setup to suit you. With improved clearance for wider rims and tyres as well as a new Shadow Technology rear derailleur that gives a lower, more aero profile and increased protection from crash damage the Shimano Ultegra R8070 Di2 Disc groupset marks a significant development in the evolution of Shimano’s Di2 electronic drivetrain.
Specs of the groupset:
Chainset: R8000 with a choice of ring sizes and crank lengths
Cassette: CRS8000 11 speed
Chain: CN-HG601, with upgrades to HG701 and HG901
Rear Derailleur: RDR8050 SS
Front Derailleur: FDR8050 Braze-on
Bottom Bracket: BBR60 or BB72
Disc Brakes: STR8070 levers with BRR8070 flat mount calipers. Hydraulic system.
Rotors: Options to buy with or without Shimano rotors
Internal seatpost battery and charger included.
Cables Included.
Di2 Junction Boxes Included: SM-JC41, SM-EW90-A - Optional EWRS910F (In-Frame junction box) or EWS910H (Bar-End junction box)