A final list of spares I will be taking with me:
- airfilter
- oilfilter
- clutch-, front brake- and gear-levers
- spare inner tubes (1 front, 1 rear)
- clutch- and throttle-cables (already put in place next to the original ones)
- spokes; water pump repair kit + all necessary gaskets (this is one of the F650's weak points)
- fork seals (tucked away in the bike's boot, next to the 12v pump)
- brake pads (3x front, 2x rear)
- spare bulbs (head light, dashboard, rear light)
- various nuts & bolts (incl. subframe bolts)
- various fuses
- electric cable
- spark plugs
In addition to that, I've got an airfilter & a knobbly rear tire sent to Iran (via DHL), so I can swap them over for the pot-holed bits from Turkmenistan through Tajikistan.
I might consider getting front & rear sprockets in Italy and then cable-tie them to the bash plate (low weight & out of the way). Chains should be easy to get hold of in Central Asia, so no need for that.