It does not have mounting hardware on it yet but I weighed what's on mine now and included it the total.It will mount like normal panniers....hooks on top and I will replace the tension cord/spring with a solid mount on the bottom.

The trash can is much stiffer than fabric,so I don't see why it would flop around.Instead of having a backboard to mount hardware on and give some shape to the panniers,the frame is the backboard.In the worst case and it does wobble around,I'll just wrap the panniers belly strap around the back of the rack,it won't wobble then.

These plastic trashcans are pretty tough stuff,I jumped up and down on it trying to crack it,no go.I put it in the freezer for a couple hours and jumped up and down on it,no cracks.

The trashcans come in just about any color you would want,I like black,it goes with everything.......The purple material is just some stuff I had laying around,it's not purple silnylon.But I have some here and weighed it up so the weights would be close.

I'm going to mount mine with the hooks I have been using for 35 years off of my old Cannondale panniers.I use them on everything because they fit my racks well.The hooks and bottom mount will be mounted using 1/8 x 3/8 aluminum flat stock.It's the same mounts I have used for many many years and has never failed,no reason to start experimenting now.

If anything fails,I'm sure it will be the frame.It may get stress cracks in it over time around the mounts.I actually think it will be fine,these plastic trashcans can take a good beating and come back for more.