Originally Posted by
noteon
I can't quite tell from their graphics how the bag mounts on the SQR. I have a Carradice Nelson Longflap on my randonneuring bike (not the Swift), and I'm looking at it, then back at that graphic, then back at the bag... Do you have one of these? What happens with the leather straps that usually go through the saddle loops?
I have a "
CarraDry SQR Glentress", which is a comparatively small (5 liter) waterproof bag using the SQR mount; the bag is essentially built around a frame very similar to (mostly a bit smaller than) the one you're looking at.
The leather straps for attaching the top of a normal saddlebag would go on the crossbar at the top of the frame, near where that carrying strap is attached (okay some of this is educated guesswork, I haven't seen that frame close up).
All of the Carradice SQR bags share a common frame, made of 6-7mm steel(yes?) rod, bent and welded so there's a long thin triangle frame on either side, with two crossbars connecting the triangles at one end, forming a rectangle roughly 2 inches on a side; this rectangle attaches to the SQR block on the seatpost. The picture shows roughly how things attach. All the SQR bags have the frame built in; they also sell a "
SQR System" (or "SQR Uplift") which is essentially the system minus any bag (bring your own).
Originally Posted by
noteon
Urbanis, if you're thinking of something like a Carradice bag, would a
Bagman do what you want?
For what it's worth, the Bagman, as far as I can tell, doesn't quick-release in any way -- if you put it on a folder like the Swift, then you've got this sort of
oversized coat-hanger thing sticking out behind the seat all the time (though I'm just going from pictures, haven't seen one up close).