This is where I am from. if a tire blows 100 miles from the nearest town, and the nearest town is a gas station/feed and grain store, a church, a school, and a handful of houses ... yer skrewed.

I like to bring all the water I will possibly need for drinking and cooking, and enough food, knowing the next town might not have a camping goods store ... or even a grocery store. Water is heavy, but dehydration is a lot harder to ride through than fatigue from extra weight.

I like to bring hot weather-, cold weather-, and rain gear because all of that is important if you are going to be out there for more than a week, or at altitude, or in the desert, or all of the above.

It is possible to skip the tent and sleep wrapped up in a tarp if it rains, but it is nice to have a tent so you can actually get out of the rain and change clothes, go through gear, etc.

Oh, and I forgot a first-aid kit. Almost never need it--until you Really need it.

I also suggest some serious dry bags, because a couple days of riding in rain will soak or leak or condense through just about any "waterproof" pack system. I can usually count on triple-bagging individual items or small bundles in plastic bags, but plastic bags rip easily. Dry bags add weight but they Work. Not needed for everything, but not worthless IMO.

A light pot, a camp stove, a bottle of fuel, a sleeping bag and pad, a second pair of shoes or sandals ... credit card touring is a Lot of fun, but if you aren't going to buy much along the way (or might not have the option of buying much for a week or two,) you have to bring it. A lot of packing lists might be "the stuff I wish I had brought on my last trip."

Check out the packing list machka (see above) uses: Packing List