^ I have the IBS, it will fill about 2/3rd's of the way. I use another bag in the front walkway to add more weight up front.
The nice thing about the IBS is that if you have a few extra peeps on board, you can put them up front (eliminating the walkway bag) and still have plenty of weight up there.
New interior is in, now it's time to get on the water
2002 X Star
Sold - 76 S&S