i've just changed all the components on my Orbea bike to Ultegra 6700. this is the first time i've done this and have found it not too bad with the exception of the front derailleur. its at the correct height on my seat tube and also in line with the outer chain ring which is all good. when shifting from the large to small chainring...the derailleur makes a bit of a slap noise but isn't slapping against the tube. is this a cable tension problem. wasn't sure. its tight when on the large chainring but not on the small. the noise is fustration and i'm getting a little impatient now. please help!!!!!!!!!!!