I bought a 2012 Wilier Gran Turismo with Ultegra and FSA kit. My problem so far and is getting very annoying after several trips to the local bike shop, the derailluer will on stay tuned for about two weeks and then when I take off on a ride it sounds makes a loud noise when putting force to the cranks. The noise the best I can describe it sounds like a grinding/not shifting/front derailluer grind, but the front is adjusted so that's not it. If anyone can help it would be greatly appreciated, I love the bike but cannot live with this, please anyone, Thank's in advance.