I have one made by T-Bags and this one by Saddleman's looks even nicer! I really like the back seat bag because you can remove it quickly and carry it like luggage. The one I have has a built in rain cover that works real well. Can't remember what I paid for it but somewhere around $100 I think. If you're going to travel alone for long distance, the back seat bag is the way to go. Makes a good backrest if you don't have one too.....
I used a duffle bag on my Florida to Phoenix trip.
and it made a very nice backrest on that trip
But, as duffle bags have a habit of doing, they are a bit long and tend to get stuffed way full and mine ended up at 90 lbs.
That was okay, pretty light for a "passenger", but oh my when the ole girl went to sleep at a rest stop on soft downhill sloping gravel..... oof! that bike was way heavy trying to get her back upright again. I should have taken the bag off, uprighted the bike, and then put it back.
I have used a number of small bag configurations, but after seeing the reviews of the DR4100 (4100 cubic inches) and way it lashes to the hold bars, I think I am sold.
I will be looking at one soon and hope to pick one up since I always travel solo.
I like the top loading and the unit ends up serving as a back rest and has straps on top lash in my camping chair and/or sleep pad. Looks like it would work just perfect for me. It will leave me ample room in saddle bags and trunk for the other stuff I carry.
When I was looking for a back seat bag, I was looking at the DR 4100 and the TS3200DE. In the end, I went with the 3200 so I wouldn't be too tempted to overload it and it also works better on my 1200 Standard. Good luck with the 4100. Either way, Saddlemen makes a dang good product.
Agree with you Brian...............bigger the bag, more crap you tend to load.
As I mentioned, have done trips using carry-on bag(s), waterproof bags, etc. I chose this bag for the bulky pack items like sleeping bag, tent, bike cover, cooking gear, etc. to give more room in saddlebags saving the trunk for food and water. With backpack strap, easy to carry around as well.