Total interior space available, based on CAD work is presently 103.788 liters, or 3.665 cubic ft. I'm having a prototype printed out (3D using ABS) to gauge what this looks like on the bike. If it's too tall, I may need to flatten it a little and that will drop it into the 80 or 90 liter range. Hopefully it's accurate though.

This Rightline 63L gear bag fits in the cardboard mockup, with plenty of room for other stuff. A hardcase pack this size would not though, because of the depth. Still, getting a bag in there with clothing looks good so far.

Attachment 19401