Ducati Monster S4 (2002) vs Yamaha FZR 250R (1993-95) vs Bimota BX450 (2023) vs Yamaha MT-125 (2016-17)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Bimota | Yamaha |
| Model: | Monster S4 | FZR 250R | BX450 | MT-125 |
| Years: | 2002 | 1993-95 | 2023 | 2016-17 |
| Engine: | Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Kawasaki four-stroke, DOHC single-cylinder, 4 valves | Four stroke, single cylinder, SOHC, 4-valves |
| Capacity: | 916 cc / 55.9 cu in | 249 cc / 15.2 cu-in | 449 cc / cu-in | 124.7 cc / 7.6 cub in. |
| Bore x Stroke: | 94 x 66 mm | 48 х 34.5 mm | 96.0 x 62.1mm | 52 x 58.6 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid-cooled | Liquid cooled |
| Compression Ratio: | 11:1 | 12.0:1 | 12.5:1 | 11.2:1 |
| Induction: | Marelli electronic fuel injection,50mm throttle body | MIKUNI BDS2600 carburetor | Electronic fuel injection | Electronic fuel injection |
| Ignition: | Analogue CDI (Capacitive Discharge Ignition) | CDI | Digital DC-CDI | TCI (digital) |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 74 kW / 101 hp / @ 8750 rpm | 45 hp / 32.8 kW @ 14500 rpm | NA | 11 kW / 15 hp @ 9000 rpm |
| Max Torque: | 92 Nm / 9.3 kgf-m / 67.85 ft-lb @ 7000 rpm | 25 Nm / 2 kgf-m @ 11500 rpm | NA | 12.4 Nm / 1.25 kgf-m / 9.14 ft-lb |
| Clutch: | Dry multiplate with hydraulic control | Wet plate | Wet, Multi disc | Wet, multi-disc, coil spring |
| Transmission: | 6 Speed | 6 Speed | 5 Speed | 6-Speed, constant mesh |
| Final Drive: | Chain | Chain | Chain | Chain |
| Frame: | Tubular steel trellis | Steel | Tubular, semi-double cradle | Steel Deltabox |
| Front Suspension: | Showa 43 mm upside-down fully adjustable fork | 38mm Telescopic forks | 49mm Telescopic Showa USD forks,Compression- and rebound-damping adjustable | Upside-down telescopic fork, 41 mm dia. |
| Rear Suspension: | Progressive linkage with fully adjustable Sachs monoshock with piggy back aluminum swing arm. | Monoshock preload adjustable. | Linkage-assisted fully adjustable Showa piggyback reservoir shock, new Uni-trak swingarm | Linked monoshock with spring preload adjustment |
| Front Brakes: | 2 x 320 mm Discs, 4 piston calipers | 2x 285mm discs 4 piston calipers | Single 270mm Semi-floating petal disc with dual-piston Nissin caliper | Hydraulic, single disc, 292 mm dia. |
| Rear Brakes: | Single 245 mm disc, 2 piston caliper | Single 210mm disc 2 piston caliper | Single 240mm petal disc with single-piston Nissin caliper | Hydraulic, single disc, 230 mm dia. |
| Front Tyre: | 120/70 ZR17 | 100/80--17 | 90/100-21 57M | 100/80-17 MC |
| Rear Tyre: | 180/55 ZR17 | 130/70-17 | 140/80-18 70M | 130/70-17 M |
| Trail: | 96 mm / 3.8 in | 88 mm / 3.5 in | 120 mm / 4.7 in | 89 mm / 3.5 in. |
| Wheelbase: | 1440 mm / 56.7 in | 1375 mm / 54.1 in | 1485 mm / 58.5 in | 1355 mm / 53.3 in |
| Seat Height: | 803 mm / 31.6 in | 750 mm / 29.5 in | 950 mm / 37.4 in | 810 mm / 31.9 in |
| Fuel Capacity: | 15 Litres / 4.0 US gal / 3.3 Imp gal | 14 Litres / 3.7 US gal | 10.7 Litres / 2.8 US gal | 11.5 Litres / 3.0 US gal |