The Fat Boy appeared in 1990 as a solid-disc-wheel Softail and became Harley’s most recognised cruiser. Milwaukee-Eight 107 then 114 (and later 117 on some years) replaced the Twin Cam; 2018’s Softail redesign ditched the hidden rear shock layout of the old frame for a new chassis that is stiffer and lighter.
Laden seat height is very low - mid-25-inch range on recent bikes - which is why the Fat Boy shows up on short-rider lists. Wet weight is not: 300-plus kg ready to ride. That combination, not peak hp, defines the model.
Compare with the Indian Chief and other Softail-family Harleys (Breakout, Heritage).
| Year | Photo | Engine | Power | Weight | Seat | Fields |
|---|---|---|---|---|---|---|
| 2026 |  |
1923 cc | 103 hp | 284 kg | 658 mm | 39 |
| 2025 | – | 1917 cc | 103 hp | 284 kg | 658 mm | 31 |
| 2020 | – | 1746 cc | 86 hp | 284 kg | 654 mm | 26 |
| 2019 | – | 1746 cc | 90 hp | 284 kg | 654 mm | 31 |
| 2018 | – | 1746 cc | 90 hp | 284 kg | 654 mm | 31 |
| 2017 |  |
1690 cc | 75 hp | 284 kg | 654 mm | 31 |
| 2016 | |
1690 cc | 75 hp | 284 kg | 654 mm | 31 |
| 2015 | |
1690 cc | 75 hp | 284 kg | 654 mm | 31 |
| 2014 | |
1690 cc | 75 hp | 284 kg | 654 mm | 31 |
| 2013 | |
1690 cc | 75 hp | 284 kg | 654 mm | 26 |
| 1997 | |
1338 cc | 55 hp | 284 kg | 654 mm | 37 |
| 1996 |  |
1338 cc | 57 hp | 284 kg | 692 mm | 36 |
| 1995 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 38 |
| 1994 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 38 |
| 1993 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 38 |
| 1992 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 37 |
| 1991 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 37 |
| 1990 |  |
1337 cc | 49 hp | 295 kg | 673 mm | 36 |