Harley-Davidson FLSTF Fat Boy vs Boom Trikes Classic Family (2011)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson FLSTF Fat Boystacks up against the Boom Trikes Classic Family. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Harley-Davidson FLSTF Fat Boy | Boom Trikes Classic Family |
|---|---|---|
| Model year | 2011 | 2010 |
| Price | $15,999 | — |
| Engine | 1584 cc | 1584 cc |
| Horsepower | — | 48 hp |
| Torque | 127 Nm | — |
| Weight | 315 kg | 700 kg |
| Seat height | 28 mm | — |
| Fuel capacity | 5.2 L | 10.0 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 4-speed |
| Front brakes | Single disc. 4-piston | Single disc |
| Rear brakes | Single disc. 2-piston | Single disc |
| Tires | 140/75-R17 / 200/55-R17 | 170/60-17 / 295/50-15 |
Harley-Davidson FLSTF Fat Boy vs Boom Trikes Classic Family — which should you buy?
Picking between the Harley-Davidson FLSTF Fat Boy and the Boom Trikes Classic Family usually comes down to the numbers you care about most. On paper, the Harley-Davidson FLSTF Fat Boy brings its published horsepower in a 315 kg package, while the Boom Trikes Classic Family counters with 48 hp at 700 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:

