I've done the same thing. Most of my gear was aquirred for backpacking but it is almost all the same for bike tours. I've made a long list of each piece of gear with weights. The overall list was distilled into a number of different trip lists for different outings, overnight, or many days or winter. I'm not an ultralight packer but having the weights makes one much more aware of how much stuff you are hauling around.

In Colorado I came across a man who was backpacking the Continental Divide Trail, Mexico to Canada. He was an ultralight kind of guy. His basic pack weight was 10 0r 11 pounds. I take much more than that for a day outing.