The 2025 Harley-Davidson FXBB Street Bob is a pure-bred bobber that blends minimalist style with brutal V-Twin power and modern performance. At its heart is the Milwaukee-Eight® 117 Classic V-Twin engine, tuned for strong street performance with a wide, flat torque curve that gives you plenty of grunt when you twist the throttle. Complementing the engine is a two-into-one exhaust system that enhances flow and delivers a deep, muscular soundtrack true to Harley-Davidson’s iconic character.