Harley-Davidson FXSTDI Softail Deuce vs Harley-Davidson FLSTFI Fat Boy (2006)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson FXSTDI Softail Deucestacks up against the Harley-Davidson FLSTFI Fat Boy. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Harley-Davidson FXSTDI Softail Deuce | Harley-Davidson FLSTFI Fat Boy |
|---|---|---|
| Model year | 2006 | 2006 |
| Price | $16,995 | $16,545 |
| Engine | 1442 cc | 1442 cc |
| Torque | 115 Nm | 115 Nm |
| Weight | 295 kg | 310 kg |
| Fuel capacity | 4.9 L | 5.0 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Tires | MH90-21 / 160/70-B17 | MT90-B16 / 150/80-B16 |
Harley-Davidson FXSTDI Softail Deuce vs Harley-Davidson FLSTFI Fat Boy — which should you buy?
Picking between the Harley-Davidson FXSTDI Softail Deuce and the Harley-Davidson FLSTFI Fat Boy usually comes down to the numbers you care about most. On paper, the Harley-Davidson FXSTDI Softail Deuce brings its published horsepower in a 295 kg package, while the Harley-Davidson FLSTFI Fat Boy counters with its own power figure at 310 kg. On price, the Harley-Davidson FLSTFI Fat Boy 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: