The Long Haul Trucker was designed in all aspects to go the distance in relative comfort, and to be able to haul a bunch of stuff. Its low bottom bracket and long chainstays provide comfort and stability. Surly gave it ample tire clearance for larger tires (larger tires soak up a lot of road static) with room for fenders. The frame’s tubing is thicker-walled and larger-diameter than standard road and sport-touring frames, and this pre-tunes it for the weight of cargo. And it’s got all the braze-ons, from rack mounts to water bottle cage bosses to spare spoke holders. Like all their frames, it’s made of CroMoly steel. You’ll probably never need to have the frame repaired, but if you do you’re more likely to find someone who can weld steel than someone who can weld titanium or aluminum. Repair carbon fiber in the middle of Mongolia? Good luck with that.
The fork has two sets of eyelets on the dropouts as well as at proper mid-blade height, and bosses built into the side of the crown. All this makes the fork compatible with most types of racks, and provides options how you can mount racks and carry your stuff.
Surly chose components that balance technical ability, durability, and value. The 3 x 10-speed Shimano Deore/XT drivetrain with Microshift bar-end shifters works well on a fully loaded tourer, will last you a while, and won’t shoot holes in your wallet. Add whatever else you need, like racks and fenders.
Go somewhere. Do something. Ride a Long Haul Trucker.