Harley-Davidson Fat Boy Special vs Harley-Davidson Dyna Street Bob (2017)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson Fat Boy Specialstacks up against the Harley-Davidson Dyna Street Bob. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecHarley-Davidson Fat Boy SpecialHarley-Davidson Dyna Street Bob
Model year20172017
Price$21,299$13,849
Engine1690 cc1690 cc
Horsepower75 hp78 hp
Torque126 Nm130 Nm
Weight320 kg291 kg
Seat height26 mm27 mm
Fuel capacity5.0 L4.7 L
Fuel typepetrolpetrol
Transmission6-speed6-speed
Front brakesDouble disc. ABS. 4-piston. Single disc. 4-piston fixed
Rear brakesSingle disc. ABS. 4-piston.Single disc. 2-piston torque-free floating
Tires140/75-R17 / 200/55-R17 100/90-B19 / 160/70-V17

Harley-Davidson Fat Boy Special vs Harley-Davidson Dyna Street Bob — which should you buy?

Picking between the Harley-Davidson Fat Boy Special and the Harley-Davidson Dyna Street Bob usually comes down to the numbers you care about most. On paper, the Harley-Davidson Fat Boy Special brings 75 hp in a 320 kg package, while the Harley-Davidson Dyna Street Bob counters with 78 hp at 291 kg. On price, the Harley-Davidson Dyna Street Bob has the lower MSRP.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: