Ortlieb are simply the best. I got these to attach to a surly nice front rack. There is several variation for mounting with this rack and when putting bags on lowest bar, there wasn't a great support for the bottom half of the bag. But not a big deal, it works well in other placements.Awesome! The new mounting hardware is nice, no tools needed. These are a little smaller than the back rollers and will be great for balancing load. I love ortliebs products and they are really durable, theyll likely outlive me.