Does anyone know of a way to make the rear seat easily removable? The reason I ask is I'm looking at a bag that fits on the seat but the straps run underneath the seat. I'd like to be able to put the bag on and take it off without using tools; and without taking too much trouble/time. I'd also still like to be able to use the seat when I don't have the bag on it.

Any help is appreciated :D

George