what?! finally an italian 600rr rider!
tomorrow i will try to do something like that, i will use the pack to go the university(milan) carrying some heavy stuff, have you already tried to ride with it full of stuff? how is it?
I will need to carry a viro chain(8kg) plus my 15" laptop and some books; in the past months i was using a pretty cheap stuff(decathlon bag payed 5€) and was a pain everyday due to the movements of the bag.
Hey, hey, yes, I live in Milan, too - I'm not Italian and my language skills are a little limited, but very happy to meet a fellow rider here.
There are a few other guys here on the forum that appear occasionally, but I guess they're more active on an Italian board.
I usually use my US10 for day trips to pack some water, a little food, disc lock and some other stuff. I've used the US20 and put my 2 chains - I don't know how much they weigh, but it's about 3m of chain so quite heavy and a bunch of other stuff was in it as well. I haven't had problems on short trips.
The bag's stable when you strap it down tight. I tighten the 2 on the front strongly because they're attached to that solid piece of metal and the 2 on the back are snug, but not super tight. The bag won't slide around when full, but with a heavy object like a chain, I think the weight could shift so be careful how you pack it. I was paranoid it was going to fall off the first time I used it on the day I got my bike (200km trip). Make sure you roll it tight and close all 3 Fastex attachements to be sure nothing comes out. I'd try it without the laptop a few times first...
, but I wouldn't expect any problems.
By the way, here's the other thread in case there are some useful ideas there for you:
Tail bags anyone got them?