@006 FXDBI Dyna Street Bob, #9 in the Harley-Davidson Motorcycle Milestones. Harley-Davidson's 2006 FXDBI Dyna Street Bob was inspired by riders in the 1950s who stripped some of the shiny parts off their bikes to get a bold custom look. But with its cool black powder-coated Twin Cam 88 powertrain, 6-speed transmission, and chunky emblem on the Fat Bob tank, this machine is pure 21st century. Die-cast Metal and handcrafted, dated 2007.