Ducati 998 S Bostrom Replica (2002) vs Ducati 125 Scrambler (1962-63) vs Yamaha FZ-10 Tourer (2017) vs Harley-Davidson Harley Davidson Softail Fat Boy 114 30th Anniversary (2020)
Comparison technical specifications
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| Make: | Ducati | Ducati | Yamaha | Harley-Davidson |
| Model: | 998 S Bostrom Replica | 125 Scrambler | FZ-10 Tourer | Harley Davidson Softail Fat Boy 114 30th Anniversary |
| Years: | 2002 | 1962-63 | 2017 | 2020 |
| Engine: | Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valve per cylinder, belt driven | Four stroke, single-cylinder, OHC | Four stroke, Transverse four cyclinder, DOHC, 4 valves per cylinder | Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder |
| Capacity: | 998 cc / 60.9 cu in | 125 cc / 7.6 cu in | 998 cc / 60.9 cu-in | 1868 cc / 114 cu-in |
| Bore x Stroke: | 100 x 63.5 mm | 55.2 x 52 mm | 79.0 x 50.9 mm | 102 x 114.3 mm |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 11.4:1 | 8.0:1 | 12.0:1 | 10.5:1 |
| Induction: | Weber Marelli CPU 5.9M, 54mm throttle bodies, electronic fuel injection | 22 mm Dell'Orto carburetor | Fuel Injection | Electronic Sequential Port Fuel Injection (ESPFI) |
| Ignition: | Digital CDI | Magnetic flywheel | Digital TCI | Single-fire, non-wasted, map-controlled spark ignition |
| Starting: | Electric | Kick | Electric | Electric |
| Clutch: | Dry multiplate with hydraulic control | Wet, multi-disc | Wet, Multiple Disc | Mechanical, 10 plate wet, assist & conventional |
| Transmission: | 6 Speed | 4 Speed | Constant Mesh, 6-speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Belt, 32/66 ratio |
| Frame: | Tubular steel trellis | Single cradle, tubular steel | Aluminium Deltabox | Mild steel, tubular frame, rectangular section backbone, stamped, cast, and forged junctions, MIG welded, aluminum forged fender supports |
| Front Suspension: | Öhlins upside down fork with 43 mm of condition pipe diameter, TiN coating | Hydraulically damped telescopic fork | 43mm Telescopic forks | Dual bending valve 49mm telescopic with aluminum fork triple clamps, dual rate spring, "beer can" covers |
| Rear Suspension: | A arm rocker with progressively working Öhlins central shock strut | Dual plunger shocks | Swingarm (link suspension) | Hidden, free piston, coil-over monoshock, 43mm stroke, toolless hydraulic preload adjustment |
| Front Brakes: | 2 x 320 mm Discs, 4 piston calipers | 158 Drum | 2x 320 mm hydraulic discs | 2x 300mm discs, 4 piston fixed caliper |
| Rear Brakes: | Single 220 mm disc, 2 piston caliper | 136 Drum | Single 220 mm hydraulic disc | Single 292mm disc, 2 piston floating caliper |