Xpat. How does the Mosko work when it's comes to filling up the 690? That alone makes me want to get rid of the Giantloop. Having to basically remove the whole bag every time I want to access the fuel cap... really annoys me.. a lot.
Unfortunatelly the same - at least my version. My understanding is that newer version has an opening in the backbone to accommodate the rear tank.
I work around it by riding mostly on front tanks, which give me 200 km range and keeping rear tank full in reserve. But yes, I had to few times on my trip take the rear luggage off to fill the rear tank. In my riding it is not such a big deal as I'm usually so knackered from the riding that I welcome the break, but if somebody is only into easy peasy adventure riding not hard riding, where they just want to kill as many km as possible very quickly, it would get annoying. In my riding 200 km usually takes better part of the day to do.
Edit: I see that Reckless 80 litre version 2 has opening for rear tank for 690, but I don't see one for 40litre version.