Love my 83 560. I'm planning a bar change and bar end shifters as soon as they come in. The Helico I kept on until I found a nicer set of wheels. Helicomatic is not really all that bad, unless the bearings or cogs wear out. The only real solution then is to buy a mint condition bike to replace the parts(Yeah Right, lol) or change the hub. As far as frame problems, I've had zero.,,,,BD