[QUOTE="Harry"] You can buy a rack, or you can buy pannier frames, or you can buy all three. The pannier boxes will actually fit the rack and the rack boxes will fit the panniers - the only difference is the size and reflectors. You would not want a really deep top box, as a pannier and a pannier used as a top box would show a white and a red reflector to the rear. The boxes just hook on, but are only removable if you have the key.[/QUOTE] As I mentioned previously, Givi do some popular panniers called the V35. these are purely panniers and alot of the racks they make suit the V35s only, so they can't double up as topboxes. Here's a back view of my bike showing why. [URL]http://www.flickr.com/photos/25191903@N05/3313223999/sizes/l/[/URL]