Bought this 2014 Zero.9 last summer. It had Ultegra on it, moved that and the stock wheelset to a Klein frame I bought for my son's birthday, bought a Campagnolo groupset (low-end Centaur, but Campy) and put it on the Wilier, along with the Williams wheelset I had on my old Orbea (the "W"s go together ). This was a first for me, changing groupsets. Both bikes actually work, a miracle. Also my first carbon frame, so far I love it.
it.