Harley-Davidson Softail Fat Bob Dark Custom vs Harley-Davidson Softail Street Bob Dark Custom (2018)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson Softail Fat Bob Dark Customstacks up against the Harley-Davidson Softail Street Bob Dark Custom. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Harley-Davidson Softail Fat Bob Dark Custom

Harley-Davidson Softail Street Bob Dark Custom
Spec comparison
| Spec | Harley-Davidson Softail Fat Bob Dark Custom | Harley-Davidson Softail Street Bob Dark Custom |
|---|---|---|
| Model year | 2018 | 2018 |
| Price | $16,049 | $13,845 |
| Engine | 1690 cc | 1690 cc |
| Horsepower | 80 hp | 86 hp |
| Torque | 135 Nm | 127 Nm |
| Weight | 305 kg | 289 kg |
| Seat height | 23 mm | 27 mm |
| Fuel capacity | 5.0 L | 3.5 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 6-speed |
| Front brakes | Double disc. ABS. 4-piston. | Single disc. Optional ABS. 4-piston |
| Rear brakes | Single disc. ABS. 2-piston. | Single disc. Optional ABS. 2-piston |
| Tires | 130/90-B16 / 180/70-B16 | 100/90-B19 / 150/80-B16 |
Harley-Davidson Softail Fat Bob Dark Custom vs Harley-Davidson Softail Street Bob Dark Custom — which should you buy?
Picking between the Harley-Davidson Softail Fat Bob Dark Custom and the Harley-Davidson Softail Street Bob Dark Custom usually comes down to the numbers you care about most. On paper, the Harley-Davidson Softail Fat Bob Dark Custom brings 80 hp in a 305 kg package, while the Harley-Davidson Softail Street Bob Dark Custom counters with 86 hp at 289 kg. On price, the Harley-Davidson Softail Street Bob 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: