2011 Harley-Davidson FLSTSB - Cross Bones, Call 503-769-8888 2011 Harley-Davidson® Softail® Cross Bones The 2011 Harley-Davidson® Softail® Cross Bones FLSTSB is an old school bobber. This custom bobber has the classic lines of a vintage hardtail with hidden motorcycle shocks. Hidden inside this classic bobber motorcycle, these horizontal shocks are a signature of the Softails. The FLSTSB Cross Bones sprung seat has vintage bobber motorcycle style and will keep you comfortable with the high tech filler.