I wrote this a while back in another thread:

"35 Pounds. Mostly stock 2015 54CM LHT with Tubus Duo, Tubus Cargo, front and rear lighting, mirror, bell, cycle computer, 2 bottle cage without bottles, Brooks Cambium, repair kit in 48 Oz. Nalgene carried on rear rack (pump, tube, full set allen wrenches, screwdriver, tire tools, tire patch kit) Schwalbe Marathon Plus (4 pounds of tire soon to be replaced)."

Keep in mind that the tires above weigh 4 pounds just by themselves. I went to Marathon Supremes and lost two pounds. I did this on digital scales that match what the doctors office says pretty close. I'm sure it's not 100% accurate.