I know HP Velo do a custom bag for the Spirit (at a significant price!!!) & I have the lowrider pannier rack (in Hungary!), but I was wondering if a saddlebag could be used as a viable alternative using the bar at the top of the Spirit's seat. The only misgivings I have are that the support loops may be a bit close together and could cause the bag to slide around, but there are ways around that by putting loops around the bar to prevent sliding.
Has anyone else considered/done this?