Glad to see you enjoying your Toughroad. I got mine a little over 6 months ago and have enjoyed riding it and seeing what it can handle. I got the GX1 model and I changed a few things from stock including the stem, seat and seatpost (the og seatpost was creaking a lot), gearing, as well as setting up a separate wheelset for more off-road oriented riding. I also changed the bars but I changed them back recently for other reasons.
PS: That 50mm tire clearance is pretty accurate. In fact if you choose to run any sort of tire that goes beyond 50mm, especially a knobby tire with side knobs that are that wide, you will not have much of any clearance left. Just a heads up from a guy who tried multiple "50mm" tires that left little room for clearance
