These pictures were taken at NAMGAR GT-40 in Frankenmuth, Michigan, in June 2015. I could not find a manufacturer's name on the trailer, and I did not find the owner. Typical of modern molded plastic trailers, lid hinge in front, latch in back. Top tie down bars may be functional for additional light luggage, but I don't know about load capacity on the top cover. Wheels of 8-inch dimeter in 4-bolt or 5-bolt pattern are both standard configuration.