If you are thinking about getting a pro mountain bike off ebay, here is a tip that I got from a pro mountain biker. He’s my student and owns a Trek 9.9 from 2006. He told me that now’s the time to get a bike off ebay, because the pros are getting rid of their bikes from last year and buying new ones. Pros, if they aren’t fully sponsored, will pay cost on these bikes. That’s about %50 of retail value.