Ducati 750 F1 Montjuich (1986) vs Yamaha FZR 250R (1993-95) vs Yamaha XT 250 Serow (2010-11)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Yamaha |
| Model: | 750 F1 Montjuich | FZR 250R | XT 250 Serow |
| Years: | 1986 | 1993-95 | 2010-11 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valves per cylinder, belt driven | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder. SOHC, 2 valve |
| Capacity: | 748 cc / 45.6 cu in | 249 cc / 15.2 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 88 x 61.5 mm | 48 х 34.5 mm | 74.0 x 58.0mm |
| Compression Ratio: | 10.0:1 | 12.0:1 | 9.5;1 |
| Induction: | 2 x 36 mm Dell'Orto PH 40N carburetors | MIKUNI BDS2600 carburetor | Teikei 33mm carburetor |
| Ignition: | Kokusan electronic | CDI | CDI |
| Starting: | Electric | Electric | Electric |
| Max Power: | 69.9 kW / 95 hp @ 10000 rpm | 45 hp / 32.8 kW @ 14500 rpm | 18 hp / 13.1 kW @ 7500 rpm |
| Max Torque: | 70.6 Nm / 7.2 kgf-m / 52.1 ft-lb @ 7000 rpm | 25 Nm / 2 kgf-m @ 11500 rpm | 19 Nm / 14.0 lb-fts @ 6500 rpm |
| Clutch: | Wet, multiplate | Wet plate | Wet, multiple discs, cable operated |
| Transmission: | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | 40 mm Forcella Italia fork | 38mm Telescopic forks | 35mm Telescopic forks |
| Rear Suspension: | Round section chrome-moly steel swingarm with adjustable (for preload) cantilever mono-shock, Marzocchi PVS 4 | Monoshock preload adjustable. | Monocross, Swingarm rebound-adjustable single shock |
| Front Brakes: | 2 x 280mm Discs, 4 piston calipers Brembo P3432D "Gold Series" | 2x 285mm discs 4 piston calipers | Single 245mm disc |
| Rear Brakes: | Single 260 mm disc | Single 210mm disc 2 piston caliper | Single 203mm disc |
| Front Tyre: | 120/60 V16 | 100/80--17 | 80/70-21 |
| Rear Tyre: | 130/80 V16 | 130/70-17 | 120/80-18 |
| Wheelbase: | 1400 mm / 55.1 in | 1375 mm / 54.1 in | 1359 mm / 53.5 in |
| Seat Height: | 750 mm / 29.5 in | 750 mm / 29.5 in | 810 mm / 31.9 in |
| Dry Weight: | 155 kg / 341 lbs | 146 kg / 321.8 lbs | 123 kg / 271 lbs |
| Fuel Capacity: | 18 L / 4.8 US gal / 4.0 Imp gal | 14 Litres / 3.7 US gal | 9.8 Litres / 2.6 US gal |