Looks like a fairly new Surly Disc trucker. Nice. Would they be 26" 36H wheels by any chance? Those rims are certainly in your face rims. Nice job on the wheel build. What width tyres are the SMP+?
I also see you have the Surly front Nice rack so you must be doing some full on touring expedition, carrying a fair amount of weight to use that rack as it is so strong it could survive nuclear attack. It is the best front rack of the market imho, but it is so heavy! Plus the LHT front fork isn't light either. How do you find the combination of both these as it must make the front feel quite ......... heavy, before you even put anything on it?