2010 Harley-Davidson Softail Cross Bones. ONLY 1775 MILES! The 2010 Harley-Davidson Softail Cross Bones FLSTSB is an old school bobber. This black denim custom bobber has the classic lines of a vintage hardtail with hidden motorcycle shocks. The FLSTSB Cross Bones spring seat has vintage bobber motorcycle style and will keep you comfortable with the high-tech filler. Vance & Hines Big Radius 2-Into-2 Black pipes. Custom accessories such as grips and floorboards.