I've been dealing with a particular lbs for almost 15 years and have always found them to be accommodating and honest. I just purchased a full Ultegra carbon frame beauty from them. When I tested it before taking it home, I found the shifting to be very stiff and it was shifting very roughly. The owner agreed and spent a good deal of time adjusting the rear deraulliers and replacing the cables (internal). Finally the cables were replaced with Gore Ride On Cables and the bike rides well. I've had it for two days and ridden around 75 miles with no problems.

I trust the shop and the owner promised to take care of any problems should they arise but I have a few nagging questions in the back of my head..."Why didn't the brand new components work the first time and could I be looking at problems down the road?"

I know these things can be finicky but I'm talking about established (although a new 2011 Ultegra model) components.

Is this a more common problem than I think? What are your thoughts?