Our rig at an abandoned border crossing between Germany and the Czech Republic:
a closer look
Typical road on our tour. Originally wagon tracks between villages, paved by the Soviets for military use.
This is my illustration of volume = weight, which of course is only true if one restricts volume. All our gear for camp touring, including everything except the naked bike, fenders, bottles, and cages, weighed ~44 lbs. We could have been quite a bit lighter except that we camp in luxury: warm down double bag, 3 person tent, fancy stove and cook kit, all the niceties. We saved volume and weight by cutting back on town clothes. We had stuff we could wear to restaurants, but it was light. We had nice trail runners, a light backpack, and hiking clothes and we hiked some, but that stuff doubled as some of our town clothes.
Those panniers are of heavy ripstop, made in Seattle by a defunct shop, which is really too bad because they are fantastic, light and waterproof. We couldn't use front panniers even if we wanted to because of our carbon fork. On top of our Tubus rack is a compression sack containing our tent and sleeping bag, the bag in a plastic bag to keep the tent from getting it wet. We had two 1 liter bottles and two 24 oz, worked fine. That's our touring rear wheel with an Arai drum brake. Couldn't have done without it as many of the descents in Czechia were very steep - as were some of the climbs. Everything in the part of Czechia where we rode was either up or down - almost no flat, and the villages on those little roads are all on hilltops of course. Our low gear was 26 X 34 - we never walked.
We'd wanted to do this brewery to brewery solo tour for many years because I happen to speak a little Czech and lived in Germany near the Czech border for a couple years.
We also shrunk our backpacks when we did our re-outfit in 2010, which saved weight both on the pack and its contents.