I have a new flatbed trailer that uses a square tube tow bar instead of a round like my kid trailer has. Since I'm setup on the Burley system, I need to use a flex connector for the new trailer. I bought one of each with the trailer so I was prepared when it showed up. While looking at them either one will fit but the square tube connector has ridges which are just as round as the rest of the connector. Other than increasing the diameter of the connector, does the ridges really matter, or can I use either one on this trailer?
I'm sure I get no support from Burley since both trailers are not Burley and the packaging for the connectors clearly state not to use them on other trailers.
My kid trailer is a Pacific Voyager II and the new one I bought is a Aosom/Mwave/somebody "wonderer" flatbed.
Flex connector for round towbar:
Flex connector for square towbar:
Here is the side-by-side photo of the connectors I received: