Brooklyn replied to the topic When a bag designer meets the Svartpilen: custom tank bag for the Svartpilen in the forum Svartpilen 401 General Discussion 1 week, 2 days ago
Great looking bag, pretty much the same design I would have come up with.
Marsee, RKA and BMW made bags that mount the same way for a BMW rack bag, I forget which model it was. But it worked great on two of my other bike with a custom rack I built.
Same thing, sleeve under the bag and two small straps to pull it tight.