Yes, this is just a small waterproof roll-top bag – about the size of a large water bottle – that straps around your bike’s frame to give you overflow storage where you didn’t have any.

We test North Street's adventure bikepacking bags on an epic (and wet) weeklong cycling trip through Japan's rural backroads.

disc lock and bike cover on overnight stays so I don’t have to carry them in my rucksack. But I’ve also used mammoth roll bag style bags in the past when I’ve needed to carry a weekend’s ...