It might surprise you to find out just what it takes to build a one-off bike. Travis Brown can sure tell you. The Trek test rider and product developer lost one after last year’s early fall single-speed world championships. Trek built Brown a custom polished one of a kind 69er single speed for the event in September. After a pre-ride, derby and race, Brown UPS’d his bike back to the U.S. and the men in brown promptly lost it.