I bought this box with the intention of carrying around my tools, puncture repair kit etc. on my LC GS.
However, I wanted it to go way beyond it's design brief and also be able to carry my 2m Pragmasis 13mm noose chain and squire lock for when I tour and can't get secure parking. This chain alone weighs in at 10kg! I have seen 42" croppers shatter at the jaws without making a dent in the chain and that will do for me. Of course a grinder will eventually get through it with a lot of noise and time, but it is meant to be a 'portable' chain so there are compromises. The trouble is, how do you carry it and keep the weight central?
Well, the pillion area is the best place, and this box seems ideal. But the weight? Mark said to try it and if it didnt work, he would fix and strengthen it.
Anyway, the box arrived, and it is indeed well made and looks great fixed to the pillion area. Once adjusted, it is rock solid. The chain - all 2m of it - fits inside with room for other stuff. (If you have not seen this chain in the flesh, it is massive, even thuogh it's one of the smaller Pragmasis chains) However, I was still not convinced about it's load capacity, especially when you add in some banging around on light off road trails.
I had a email exchange with Mark with some pics, and he went way above and beyond the call of duty looking into my concerns and spent lots of time sourcing and desgning extra supports which he bought and tested on a box inhouse, before sending on to me to add to my box without any extra charge.
I have no affiliation with Mark or Cymarc, but when someone provides a service like this, I believe it deserves to be recognised. He has a very satisfied customer, and I have another cool item for my bike!