Harley-Davidson Fat Boy vs Suzuki Boulevard M109R: specs compared
Side-by-side specs of the Harley-Davidson Fat Boy (2025-present) and the Suzuki Boulevard M109R (2024-present), using the latest model year of each.
Key differences
- Power: Harley-Davidson Fat Boy 103 hp, Suzuki Boulevard M109R 128 hp.
- Torque: Harley-Davidson Fat Boy 171 Nm, Suzuki Boulevard M109R 160 Nm.
- Weight: Harley-Davidson Fat Boy 314.8 kg, Suzuki Boulevard M109R 347 kg.
Key figures
Power hp
- Harley-Davidson Fat Boy (2025-present)103
- Suzuki Boulevard M109R (2024-present)128 (best)
Torque Nm
- Harley-Davidson Fat Boy (2025-present)171 (best)
- Suzuki Boulevard M109R (2024-present)160
Weight kg
- Harley-Davidson Fat Boy (2025-present)314.8 (best)
- Suzuki Boulevard M109R (2024-present)347
Full specs
| Specification |  2025-present · Fat Boy 117 Remove |  2024-present Remove |
|---|---|---|
| Category | Cruiser | Cruiser |
| Years | 2025-present | 2024-present |
| Engine | 1,923cc (117 cu in) Milwaukee-Eight 117 Custom air-cooled 45-degree V-twin | 1783cc 54-degree DOHC liquid-cooled V-twin, 112.0 x 90.5mm bore/stroke, 10.5:1 compression |
| Cylinders | 2 | 2 |
| Displacement | 1,923 cc | 1,783 cc |
| Power | 103 hp @ 4,800 rpm | 128 hpBest |
| Torque | 171 Nm @ 3,000 rpmBest | 160 Nm |
| Transmission | 6-speed manual, belt final drive | 5-speed manual, wet multi-plate clutch, shaft final drive |
| Final drive | belt | shaft |
| Weight | 314.8 kg (wet)Best | 347 kg (wet) |
| Seat height | 658 mm | 705 mm |
| Fuel capacity | 18.9 L | 19.5 LBest |
| Front suspension | 49 mm dual-bending-valve telescopic fork, aluminum triple clamps, dual-rate spring | 46mm inverted front fork, ~130mm (5.1in) travel |
| Rear suspension | Hidden, free-piston coil-over monoshock, 43 mm stroke, hydraulic preload adjustment | Cast aluminum swingarm with progressive linkage, single shock, adjustable spring preload, ~118mm (4.6in) travel |
| Brake system | ABS and Cornering ABS (C-DSCS) standard | Dual front disc + single rear disc; no ABS listed on Suzuki's current spec sheet |
| Front brake | 4-piston fixed caliper, silver split 7-spoke floating 300 mm rotor | Dual 310mm fully-floating discs with dual-piston calipers (per Suzuki's 2024/2025 spec sheet) |
| Rear brake | 2-piston floating caliper, silver split 7-spoke floating 292 mm rotor | Single 275mm disc with dual-piston caliper |
| Front tire | Michelin Scorcher 11, 160/60R18 70V | 130/70R18 M/C 63V, tubeless |
| Rear tire | Michelin Scorcher 11, 240/40R18 79V | 240/40R18 M/C 79V, tubeless (Dunlop) |
| Quickshifter | No | No |
| Launch price | USD 22,599 (US) | USD 15,699 (US)Best |