Harley-Davidson Dyna Low Rider S Dark Custom vs Harley-Davidson Softail Fat Boy S (2018)

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

Spec comparison

SpecHarley-Davidson Dyna Low Rider S Dark CustomHarley-Davidson Softail Fat Boy S
Model year20182017
Price$16,049$20,199
Engine1801 cc1801 cc
Horsepower97 hp92 hp
Torque156 Nm146 Nm
Weight293 kg320 kg
Seat height27 mm26 mm
Fuel capacity5.0 L5.0 L
Fuel typepetrolpetrol
Transmission6-speed6-speed
Front brakesSingle disc. ABS, 4-piston fixed.Double disc. 4-piston. ABS.
Rear brakesSingle disc. ABS, 2-piston torque-free floatingSingle disc. 2-piston. ABS.
Tires100/90-B19 / 160/70-B17 140/75-R17 / 200/55-R17

Harley-Davidson Dyna Low Rider S Dark Custom vs Harley-Davidson Softail Fat Boy S — which should you buy?

Picking between the Harley-Davidson Dyna Low Rider S Dark Custom and the Harley-Davidson Softail Fat Boy S usually comes down to the numbers you care about most. On paper, the Harley-Davidson Dyna Low Rider S Dark Custom brings 97 hp in a 293 kg package, while the Harley-Davidson Softail Fat Boy S counters with 92 hp at 320 kg. On price, the Harley-Davidson Dyna Low Rider S Dark Custom 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: