The varios are just about ok for every day but I need bigger and better for touring and am reluctant to buy the BMW Adventure ones with all the fitting kit. Any alternatives you're using?
My brother has a Shad top box that is adjustable. 58 liter max I think. You will need a fitting kit as well. If it’s just for 1 trip why not try those bags that mount on top of the adventure panniers? With a bit of ingenuity you should be able to make them work. I don’t know of any direct replacement bigger boxes that would mount straight on. JJH
2nd for Lomo, I use the 30l hold-all and I find it more than enough for 5 nights away. Just put it on the pillion seat and use an elasticated cargo net to secure and off you go. And at £25ish very good value too.
I’ve travelled thru South America, Africa, New Zealand and Europe with them. Good points, easy to knock back into shape if you have a bad off. Will not shatter or crack like plastic. Easy to load and unload with top hinged lid. Will protect the bike in a drop as keep the bike from hitting the ground in combination with engine bars. Dust and water proof.