You may want to take a few moments to think about what you really, REALLY need. The first time I rode across the country, I took enough tools to do a small overhaul. Really useless and was just extra weight and baggage. If you have a flat, are you really prepared to do what it takes to fix a flat? Heck, I can fix a flat in my garage (maybe), but the only time I'd contemplate it on the road is in the middle of the NM/AZ/NV desert, and then only if I were waaaay off the interstate. Riding an America, tubes are much more a job than tubeless. I use
Ride-On and hope for the best. If something major broke with the engine, it's toast anyway and I can't fix it even in the garage. A chain will rarely break, and even a worn chain will get you somewhere to replace it. Spare plugs (I took some)? Plugs are designed to last tens of thousands of miles and if a plug fouls, you have a problem somewhere else that you should fix before a long trip.
I'd think along the lines of replacing a bulb or a fuse. Make sure you have what it takes to remove a bulb cover or to gain access to the fuse box. Keep a fuse kit (bladed, the small ones, not the large ones) and maybe a spare bulb or 2 packaged so they don't get broken. If you're going on a long trip, maybe take a bit of duct tape and safety wire, cel phone, and a
tow service card. I also carry a set of
Tow Downs and a
Bike Krutch .
I think tools give you a false sense of security. But I guess if it gives you a sense of security, that may be ok.