This is what I'll most likely be packin. It's a good jumping-off point.
Camping Gear:
sleeping bag
gore-tex bivy sack (waterproof sleeping bag cover)
small groundcloth
Clothes (worn):
bike shorts
lightweight wool socks
cycling gloves
tshirt
shorts
helmet
Clothes (packed):
ss wool jersey
rainjacket
knee/armwarmers
bike shorts
tshirt
ls polypropylene undershirt
Tools.:
allen, cone and box wrenches as needed for your particular bike
spoke wrench
chain tool
crankbolt wrench
crank extractor
patch kit
silca frame pump
valve adapter
multitool
spokes/nipples
spare chain links
innertubes
spare cables
rag
toestrap (regardless of whether you ride clip & strap or clipless, these can be lifesavers)
zipties
Various & Sundry:
water bottles (3)
first aid kit:
plastic bags
maps
notebook
pen
$
sewing kit
toothpaste
toothbrush
soap