always carry
multi tool (I Like aliens)
small crescent wrench
tire levers
patch kit
spare tubes ( I usually carry 3 I have had bad days)
tire patch (you can make your own out of old tubes and filament tape)
I carry a leatherman that has pliers
if you have presta valves it never hurts to carry an adapter.
spoke wrench
Air pump ( I use CO2 and carry a small hand pump just in case)
I am sure somebody will add to the list if I missed anything
David
__________________
Matthew 6