Next was to tackle the way it mounts up to the sissy bar. This is the current set up;
And the little 'tabs' off the fender are the weak point; I've already had to weld one side up! So I chopped them off and removed a thin piece of metal that acted as a sort of reinforcement to the fender.
This gave me the idea to add some reinforcement of my own! So I grabbed a piece of 5x20mm steel flat bar and after much huffing, puffing and hanging off it in the vice I came up with a piece that matched the shape of the fender;
Welded in;
Then I turned up and tapped some M8 bungs to weld into the mudguard, and through into the reinforcement bar. The pictures will explain better;
This provided a near invisible connection in the fender itself, but with plenty of 'under the hood' support. To finish it off I chopped the old mounting points off the sissy bar and added some simple washers.
Needs cleaning up a bit but I'm pleased with the result. Should also provide ample strength to support a pillion or luggage attachment!