OK this is just an excuse to bring the Swift thread back to the top of the list! The photo's show a Rixen/Kaul bottle bag which I am now using on the front of my Swift. The bag comes with a bracket to attach it to the saddle rails but it also fits an R/K universal bracket which I've fitted to the stem riser.

The bag can be removed easily but is held secure for riding. In the front of the bottle compartment is a zippered pouch that is big enough to hold some energy bars or a camera/phone etc. I have even managed to squash a lightweight windproof jacket in there. Putting the bag on the front of the riser makes it difficult to have a drink while on the move but I don't tend to do that anyway. Most bottle sizes can be held in the bag without a problem.

At the other end of the bike I have a Topeak clip-on mudguard and the arm from the q/r bracket is the perfect place to mount a rear light. Hope this posting gives you some ideas for your Swift.