Called JCS in Perth on Mr Keets behalf and explained he has a chain guard with a broken tab through the rear bolt hole. They knew it happens and were very happy to supply a black take off as a replacement. Their mechanic had a couple of ideas about this problem.
First, he pointed out the diameter of the head of the allen bolt that holds the wheel end of the guard to the side of the swingarm is a little smaller than he wants to see, considering the lack of material around that area of the attaching tab. He supplied a thick washer with a larger diameter to increase the surface area clamped. Looks like the washer is going to support the thinnest part of the tab and take the flex away from the bolt hole.
Second, he said his experiences has been that many bikes with throw over saddle bags break the chain guard, so make sure the bags are not laying on the guard or you could end up with a bag in your chain.
Easy fix, thanks to a friendly Triumph dealer.
Regards to all, STU
Edited: Keets replied: You rock Stu. Asante sana...sorry sort of off topic.