seager wrote:After investigating a little further I'm having trouble finding a pannier rack which is suitable for a 13" bike. Unfortnately the bike also doesn't have provision to attach the rack under the seat.
If you mean that the bike doesn't have the brazed on fittings on the seat stays (& I don't expect a 13" bike would) are you aware you can get seat clamps that do the job ?
One example is
M Part Seat Clamp Rack Mount & you can get the same thing from
WiggleDisc brakes can make rack mounting a bit tricky - it seems the rear caliper is almost always just in the way of where the rack would mount. Tubus have a nice solution
rear rack "extension" that enables you to mount the rack a bit further towards the rear.
Not so sure about the rack for a 13" bike, but I suspect CommuRider is on the right track looking at ones for folding bikes. If I can come up with any ideas I will get back to you
Vaude used to make a Cycle 25 Convertible Backpack/Pannier but it seems to have been discontinued. There seem to be still a few left in shops though. Cheapest I could find after a brief search was
Moruya bicycles at $129 + shipping.
If nothing else, this exercise should teach your boy persistance & resiliance.