Yep that's the picture I was talking about, lets have a closer look at it. So we have some kind of internal abutment fitted into the end of the frame welded to the hinge and also at the bottom of the frame itself. Here's a question...on the bottom weld would there have been a slot cut in the frame for the abutment to be welded, or was the weld accomplished by just cutting through the frame with a torch to the structure inside and fusing it together. Now I'll admit I'm certainly no expert on the matter but as I understand it aluminium welds unlike steel are not as strong as the parent metal, so here we have a weld where at one time there was none. I have to say I'm having difficulty understanding how cutting into the frame with a weld actually makes it stronger, even allowing for any extra bracing it may achieve in doing so.
I'm intrigued to know if this new weld configuration is now standard on all Tern frames.