Harley-Davidson FLSTC Softail vs Boom Trikes Mustang II (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson FLSTC Softailstacks 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 FLSTC Softail | Boom Trikes Mustang II |
|---|---|---|
| Model year | 2008 | 2021 |
| Price | — | — |
| Engine | 1584 cc | 1596 cc |
| Horsepower | — | 110 hp |
| Torque | 117 Nm | 160 Nm |
| Weight | 326 kg | 660 kg |
| Fuel capacity | 5.0 L | 10.0 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Tires | MT90-B16 / 150/80-B16 | 170/60-17 / 295/50-15 |
Harley-Davidson FLSTC Softail vs Boom Trikes Mustang II — which should you buy?
Picking between the Harley-Davidson FLSTC Softail and the Boom Trikes Mustang II usually comes down to the numbers you care about most. On paper, the Harley-Davidson FLSTC Softail brings its published horsepower in a 326 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: