When you ride to N. America from Central London, I'd love to know what tires you use. My bike sinks like a stone on water with its present set of rubber.Aaah! But isn't mine the best ever built? 2006? Goes everywhere. Central London, across Europe, might even make N America!!
Thanks Panzermann. I did some more research yesterday and it seems like the latch is right about where the passenger seat section meets the rider seat section. I'm going to try to move it back with a flathead screwdriver.The lock mechanism operates a Bowden cable that releases a latch that catches on a rear surface of the underside of the seat - don't know exactly where. see diagram Diagram #46_1071 at this link.
If you could locate the Bowden cable through the lock aperture and grip it (say with long-nosed pliers) then pull on it, you may be able to release the catch.