Kind of a stupid question possibly, but I was hoping to find a general maintenance schedule for road bikes. You know, how many miles you should expect out of a pair of tires, how many miles on a chain, crank and cassette, cables etc. There probably isn't a one size fits all chart I would imagine, but maybe some general guidelines? Like how to tell if a tire needs replacing, how to tell a chain is too stretched out, that sort of thing.

If there was one pretty little page that gave all this basic info in one spot, that would be pretty handy. I guess I could search each individual question out on Sheldon Brown's website, but I thought I'd ask here anyways.