I have a new Ultegra triple. When I first got it, It wouldn't shift to the small ring. A couple of times when I kept pushing the brifter lever, I threw the chain onto the BB shell somehow. I adjusted the cable tension using the barrel adjuster, and now, this is my situation. If the cable is loose enough to permit a decent shift to the the small ring, I have chain rub on the outer plate when I'm in the large ring and the smaller cogs. If I tighten the cable to eliminate the chain rub in the large ring, I cannot shift into small ring. I know that you should not have to adjust the limit screws to eliminate chain rub, but it seems logical to adjust the limit screw for the large chain ring. Am I wrong? It is a new bike BTW and I'm too lazy to bring it in for an adjustment. Thanks.