Getting the seat cover off was a pain. There's a big piece of foam glued to the seat's steel tubing structure. It has a horizontal slit in the middle of it. There is a flap on the vinyl cover that goes through that slit and then clips to the frame further down, to hold the concave surface of the seat back against the foam. The clips are very easy to put on but extremely difficult to remove: they're like binder clips with tiny teeth that grip the fabric, only they have no little wire loops to remove them. They simply press on, but there is no simple way to remove them.
Similarly, the recliner function of the seat is controlled via a lever, and removing it to get the seat covering off was really difficult. Good thing I bought a gear puller years ago.
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