Originally Posted by
FlowerBlossom
If you can, stop the order for the ortlieb rollers and get the bike packer plus bags.
You can install d-rings on the straps of the bike packer plus bags and then attach a shoulder strap to one or both bags, making more room for moving in the isles. If you can't find d-rings
I put on d-rings on my bike packer plus bags. It's not as comfortable as a backpack, but, it does make your hands free.
You can use a shoulder strap with front rollers, I assume the same would be the case with back rollers. It clips into the clips on the roll-top closure.
BTW Neil surely the train carriages for bike/handicapped access are marked - what does a guy in a wheelchair or scooter do, they can't squeeze through the aisles!