Christo's production version is likely plenty stout for a class 2 application,maybe a 3. It was designed to be easily shippable for a reasonable ammout of money yet provide a solid receiver-type mount. My original version has a solid crossmember that spans the frame at the forward end of the receiver tube and the tube is longer. I have towed my 3,700 lb boat just fine with mine.
Do remember that this is NOT RATED FOR TOWING and the end user does so at his own risk. However, if you study the mounts and the tube you can see that what is there is every bit as good as a "real hitch", it is just not represented as such and there is no liability implied as to the suitability of this device for towing....Yadda, yadda, yadda...
