I recently purchased a corbin dual canyon from ebay.
The seat is excellent and seems to be new in original box, even smells new! I don't think it was ever used. It has a small cut/split on the very back, as if from box cutter but not completely separated. I bought for a steal $200. I'm sure any upholstery shop could easily fix the cut, even a little black epoxy would do it.
I do not have the my st4 any more or would have kept the seat.
It is the carbon leather look, with small flag over back rest cover area.
$200+shipping
right now I am at a loss for how to post pics. There is a pic on ebay under completed items ducati st4 corbin.
a4_0.JPG