I have had 2 bikes in my cold room for around 3 years that I never used, from what I can remember they were over 1,000 each. But I cant find my receipts anywhere and cant find the bikes on google, and now I want to sell them to a friend. They are both Iron Horse mountain series, one says saturate and the other says boundary, I was wondering what the value of both of them are. Thanks for any help.