Harley-Davidson FXCW Softail Rocker vs Boom Trikes Mustang II (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson FXCW Softail Rockerstacks up against the Boom Trikes Mustang II. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Harley-Davidson FXCW Softail Rocker | Boom Trikes Mustang II |
|---|---|---|
| Model year | 2009 | 2021 |
| Price | — | — |
| Engine | 1584 cc | 1596 cc |
| Horsepower | — | 110 hp |
| Torque | 117 Nm | 160 Nm |
| Weight | 307 kg | 660 kg |
| Seat height | 25 mm | — |
| Fuel capacity | 5.0 L | 10.0 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc. 4-piston | Single disc |
| Rear brakes | Single disc. 2-piston | Single disc |
| Tires | 90/90-R19 / 240/40-R18 | 170/60-17 / 295/50-15 |
Harley-Davidson FXCW Softail Rocker vs Boom Trikes Mustang II — which should you buy?
Picking between the Harley-Davidson FXCW Softail Rocker and the Boom Trikes Mustang II usually comes down to the numbers you care about most. On paper, the Harley-Davidson FXCW Softail Rocker brings its published horsepower in a 307 kg package, while the Boom Trikes Mustang II counters with 110 hp at 660 kg.
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:

