I'm an anti-saddlebag person but since most of my riding dictates that I carry things (errands and whatnot), I picked a quick-detach rack for cheap and I was wondering what would be a good bag for the back? I would like something with a decent amount of space but not overly huge.
I used a Dowco roll bag for a long time. T-bags also makes a nice roll bag. I would recommend a luggage rack bolted onto your quick-detach rack if you go the roll bag route. I was able to pack a day's worth of stuff in a roll bag if I went somewhere.
I use a Saddlemen Deluxe Roll Bag (R1300LXE), I put it on the rear of my 2-up seat, but it would fit a rack as well. I use it every day I ride to work to carry my lunch, a pair of shoes, sunglasses, and extra jacket. The straps have quick clips and I can take it off and on in like 10 seconds. There is enough room that I can stop for a gallon of milk or six pack of beer on my way home and pack it in. It was under $60 ordered through M&M Cycle.
I saw someplace once that Harley made a leather bag for this rack. I'm certain its from China and cost around seven thousand dollars, but I have been looking too. Ill let you know what I find.