If you bikes and tires are well maintained, I would not bring anything other than the following for what you have planned:


2 or 3 spare tubes (assuming both bikes have the same wheel sizes)
Patch kit
Good pump like the Topeak Road Morph G
Tire levers or whatever you normally use to remove tires
Some sort of tool that has a set of allen wrenches


Hell. That and a spoke wrench is all I brought with me during my two-week, 800+ mile trip in MT and ID last month.