2011 Harley-Davidson FXDB Street Bob The Street Bob goes straight back to the minimalist roots of the bobber scene. Stripped down to the bare essentials, and as naked as the law allows, the key word here is pure with no parts that arent absolutely necessary. Since its introduction, this attitude-laden motorcycle has taken the custom world by storm with mini ape-hanger handlebar, Fat Bob fuel tank, solo seat, mid-mounted foot controls and a big, black Twin Cam 96 engine.