This full groupset includes:

• Di2 STI shifters: Now with enhanced feedback and improved ergonomics for easier access to the shift buttons from the top of the hoods.

• Di2 front mech: Fast, silent, accurate shifts every time.

• Di2 rear derailleur: Now lighter and more compact, with E-tube connection to simplify installation.

• Chainset: Bottom bracket is BSA threaded english standard. Unique four-arm spider design sets new standards for stiffness and low weight.

• Bottom bracket (BSA thread only).

• 7901 Chain.

• Cassette: Smooth, fast shifting guaranteed.

• Brake calipers: new symmetrical dual pivot design for improved efficiency and controllability.

• External Battery.

• Battery charger unit.

• Complete set of junction boxes and wiring (internal) for a tidy aesthetic.