The Kuberg Trex is now on Kickstarter for $4999 free US shipping.. You cannot beat that price. Please back the kickstarter so I can get my bike. Only 18 days left and they need more orders. Remember if the Kickstarter is not successful. You don't pay. The only downside is it won't be delivered until 2015.
https://www.kickstarter.com/projects/1511813482/kuberg-free-rider?ref=search