when i purchased my 2011 F800GS it had an aftermarket Corbin Seat on it. I am short and dont like how wide the seat is but am told lots of people love the seat. I am thinking of selling and before I pop it on Craigslist or Ebay thought I might see if there are any takers. I purchased the bike wth 8500 miles on it so if the previous owner changed seat as soon as he purchased the bike then that is how much use it has but it looks like a lot less. No tears rips or damage of any kind. I did some research and the seat is lower than standard and higher than the low option from BMW. I think $300 is fair but am open to offers. You will pay shipping but that depends on where you might live.
Looks nice, but this should be in the fleamarket forum. Don't worry the F800GS crowd will find you over there.