Ducati 750 F1 Desmo (1985) vs Yamaha R5-B 350 (1971)
Comparison technical specifications
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| Make: | Ducati | Yamaha |
| Model: | 750 F1 Desmo | R5-B 350 |
| Years: | 1985 | 1971 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valves per cylinder, belt driven | Piston port two stroke, parallel twin cylinder. |
| Capacity: | 748 cc / 45.6 cu in | 347 cc / 21.2 cu in |
| Bore x Stroke: | 88 x 61.5 mm | 64 х 54 mm |
| Compression Ratio: | 9.3:1 | 7.5:1 |
| Induction: | 2 x 36 mm Dell'Orto PHF36 carburetors | 2 x Mikuni VM28 SC carburetors |
| Ignition: | Bosch BTZ electronic | Battery, dual coils, breaker points |
| Starting: | Electric | Kick |
| Max Power: | 46 kW / 62.5 hp @ 7500 rpm | 26.8 kW / 36 hp @ 7000 rpm |
| Max Torque: | 61 Nm / 6.22 kgf-m / 45 ft-lb @ 6500 rpm | 37.9 Nm / 3.87 kgf-m / 28 ft-lb @ 6500 rpm |
| Clutch: | Wet, multiplate | Multi-plate, wet |
| Transmission: | 5 Speed | 5 Speed |
| Gear Ratios: | 1st 2.500 / 2nd 1.714 / 3rd 1.333 / 4th 1.074 / 5th 0.966:1 | 1st 19.57 / 2nd 12.15 / 3rd 9.12 / 4th 7.38 / 5th 6.16:1 |
| Final Drive: | Chain | Chain |
| Front Suspension: | 38 mm Marzocchi telescopic fork | Telescopic fork |
| Rear Suspension: | Round section chrome-moly steel swingarm with adjustable (for preload) cantilever mono-shock, Marzocchi PVS 4 | Swingarm |
| Front Brakes: | 2 x 280mm Discs, single piston caliper. | Drum, twin leading shoe |
| Rear Brakes: | Single 260 mm disc | Drum, single leading shoe |
| Front Tyre: | 120/80 V16 | 3.00-18 |
| Rear Tyre: | 130/80 V18 | 3.50-18 |
| Dimensions: | Length: 2110 mm / 83.1 in Width: 690 mm / 27.2 in Height: 1130 mm / 44.5 in | Width: 739 mm / 29.1" |
| Wheelbase: | 1400 mm / 55.1 in | 1341 mm / 52.8" |
| Seat Height: | 750 mm / 29.5 in | 790 mm / 31.1" |
| Dry Weight: | 175 kg / 386 lbs | 146 kg / 322 lbs |
| Fuel Capacity: | 18 L / 4.8 US gal / 4.0 Imp gal | 12 L / 3.2 US gal |
| Top Speed: | 200 km/h / 124 mph | 153 km/h / 95 mph |