I do wish they opened vertically along the top though. My hard-sided bags on my vulcan opened this way. You get a little bit of "cheat" space with the space in the lid when you shut it. Haven't had the need yet to cram my F6 bags full yet, but I imagine I'll be doing the "hold your stuff in with one hand, and pull it out real quick and shut the door." That is till I finally spring for the luggage rack.