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On mine what happened was the eyeless above the dropouts pulled out of the fork. The design is flawed because the eyelets have a lip but it's on the outside so doesn't prevent them pulling out. A good idea would be to procure longer bolts, a couple of nuts and some washers and bolt all the way through the eyelets and put a washed and nut on the back to sandwich the eyelet in the fork. Hope this makes sense.
Sound like an amazing trip, keep an eyes on the fork/low rider mount thought.