mlavis wrote: I am preparing for a 2 year expedition style tour of SE and Central Asia. I am on a bit of a budget (would prefer to keep spending under control so I can fund the 2 years I'll need to complete the trip!).
Mark, considering the scope of the expedition you are planning I question the economics of upgrading this bike. If you are on a tight budget then last thing you want is a bike failure in some remote location where obtaining parts or repairs might be very expensive and time-consuming. Better to spend a little more up front to buy a new Surly Long Haul Trucker or similar bike and have confidence that there will be no unexpected imposts on your budget once on the road. If you do this up front then at least you are in control of your budget. You may have to work/save a little longer to raise the funds, but it will be worth it for the peace of mind.
BTW, I've posted some links on your thread about maps in the Touring Overseas forum.