Dura Ace di2 9070 11 Speed groupset Mechanical Brake. Taken from my current complete bike. Everything works as it should, all the parts are there except the charger. I always loop zip ties on the battery in case it vibrates out of the seatpost so its easier to fish out. The cassette in an Ultegra 11-25. I also have the Dura Ace 9100 53-39 172.5 crankset in a separate auction that will ship free if you want it with the shifting group. Thanks.