Harley-Davidson FLSTSB Softail Cross Bones -With the retro look of a Springer front end and other post-war era bobber styling cues like a sprung solo seat, half-round rider footboards, Gloss Black round air cleaner cover and chopped front fender, the Softail Cross Bones rides with a Black and Polished Twin Cam 96B powertrain, 6-speed Cruise Drive transmission and truly unique Softail suspension.