I know the Ortlieb Front Rollers and Back Rollers as ubiquitous as helmets among tourists. I decided to add my 2-year review of these, with a comprehensive look at the mounting hardware, fail points, modifications, and shortcomings of these expedition panniers.
Here's the review.
I also wrote up a guide on cutting down the weight of the Ortlieb panniers, found here.
Just so there's one source of it, I also compiled all the specs, from the weight to the waterproofness ratings to dimensions for the front rollers and back rollers.
I'd appreciate any feedback! Thanks!