I see the archived general advice for any hint of rust on yer chain is *replace it!* But I thought I'd open the question again for fresh opinion. I'm sure there are lots of people in my situation, having ridden in the grimy salt over the winter, without indoors storage, and failing to wash the bike down thoroughly after every trip. My chain *looks* horrible, with a lot of rust on it. But I think it may be just surface rust on the outsides of the links. I'm always totally anal about lubing the chain after 350 miles, and I've been doing that more regularly over winter. On the other hand, the thought of the chain breaking fills me with horror. What's your take? The bike's done 15,500 in the last 2.5-3 years. How long do well-maintained chains last? cheers Biz