Any suggestions are greatly appreciated. The chain rubs against the adjusment barrel in the fulcrum lever. When removing and re-installing the wheel I can set-up everything properly so that there is no rub. Once I start riding and shifting, (generally it happens with a multi-gear jump; ie 3 to 6) something causes the rub. I've tried adjusting the chain length, where the wheel sits in the dropout and the cable routing but nothing seems to prevent the rub . The one area I can't do myself and may be related is wheel dish, but I'm not sure if this has anything to do with it. Attached are several photos. Thanks again for any ideas. I hate a noisy bike not to mention the wear on the chain.