The pin on the n-line also supports the trailer from falling over, the bushtec has two tires so there is little lateral stress. This needs to be factored into the equasion but also remember that it is only as strong as the weakest link. Is the attachment to the fender/strut any beefier on the n-line? The plate itself is beefier but are the actual attachment points?
/Bill
That's the same Bill. Same connections at the same connecting points. Same sized hardware making those connections. The hitches we have are assemblies of three brackets where the N-Line is one constructed piece. But the mating to the bike is identical.
The only other factor within the hitch itself is will any rotating force along that center line longitudinal axis be enough to twist the center of the Bushtec hitch. I don't think so. But it's only a perception based on viewing and not on any measures of engineered stresses.
The bulkier center section of the N-Line receiver would obviously address that concern. It looks as if the rotational stress would actually be at it's worst during very slow speed maneuvering. Turning corners in town. Once at speed with the trailer on trim it's a straight line again.