Checklist for any long distance ride:
cellphone
tank bag
saddle bag
tail bag
honda tool kit
monkey butt (a must have item)
chain lube
small can of honda polish
spare rags
quick inflate tire repair kit
ass made of iron
good company is optional, no company can be fun, but the wrong company is not exceptable
cash and credit cards
granola bars, energy drinks etc.
mp3 player
tent
sleeping bag
pillow case to shove spare clothing in so you dont actually have to bring a pillow (or three if your pickel)
atleast double the socks and underware that you would origninally plan on bringing
extra cargo nets
spare set of sandles incase you loose a flip flop while riding through the desart
spare riding gear(ie rain suite extra gloves)
i prefer an external back protector at all times, just makes me feel more secure
also makes packing the extra jackets alot easier since the big clumbsy foam pad is out of your spare