Ducati Ducat ST4 (1997-98) vs Ducati 916 Senna II (1997)
Comparison technical specifications
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| Make: | Ducati | Ducati |
| Model: | Ducat ST4 | 916 Senna II |
| Years: | 1997-98 | 1997 |
| Engine: | Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder | Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valve per cylinder, belt driven |
| Capacity: | 916 cc / 55.9 cu in | 916 cc / 55.9 cu in |
| Bore x Stroke: | 94 x 66 mm | 94 x 66 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 11.0:1 | 11.0:1 |
| Lubrication: | Wet sump | Wet sump |
| Engine Oil: | Synthetic, 20W/50 | Synthetic, 15w-50 |
| Induction: | Fuel injection, 50 mm throttle body, Marelli 1.6M | Weber I.A.W. CPU P8 electronic indirect injection |
| Ignition: | Marelli electronic | Electronic I.A.W |
| Starting: | Electric | Electric |
| Battery: | 12V 16Ah | 12V 16Ah |
| Max Power: | 78.7 kW / 107 hp @ 9000 rpm | 83.8 kW / 114 hp @ 9000 rpm |
| Max Torque: | 89 Nm / 9 kgf-m / 65.6 ft-lb @ 7500 rpm | 90 Nm / 9 kgf-m / 66.3 lb-ft @ 7000 rpm |
| Clutch: | Hydraulically actuated dry multiplate clutch | Dry, multiplate |
| Transmission: | 6 Speed | 6 Speed |
| Primary Drive Ratio: | 1.84:1 (32/59) | 2:1 (31/62) |
| Gear Ratios: | 1st 2.466 / 2nd 1.765 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857:1 | 1st 2.466 / 2nd 1.765 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857 |
| Final Drive Ratio: | 2.53:1 (15/38) | 2.4:1 (15/36) |
| Final Drive: | Chain | Chain |
| Frame: | Steel, Trellis frame | Steel, Trellis frame |
| Front Suspension: | Showa GD081 43mm upside-down fully adjustable fork. | 43 mm Adjustable Showa GD051 inverted fork |
| Front Wheel Travel: | 130 mm / 5.1 in | 127 mm / 5.0 in |
| Rear Suspension: | Progressive linkage with fully adjustable Showa GD082 monoshock with piggy back aluminum swing arm. | Showa GD52-007-02, rising rate progressive linkage adjustable monoshock |
| Rear Wheel Travel: | 148 mm / 5.8 in | 130 mm / 5.1 in |
| Front Brakes: | 2x 320 mm Discs, 4 piston calipers | 2 x 320 mm Discs, 4 piston calipers |
| Rear Brakes: | Single 245 mm disc, 2 piston caliper | Single 220 disc, 2 piston caliper |
| Front Tyre: | 120/70 - ZR17 | 120/70 ZR17 |
| Rear Tyre: | 180/55 - ZR17 | 190/50 ZR17 or 180/55 ZR17 |
| Dimensions: | Length: 2070 mm / 81.5 in Width: 910 mm / 35.8 in Height: 1180 mm / 46.5 in | Length 2050 mm / 80.7 in Width 685 mm / 27.0 in Height 1090 mm / 42.9 in |
| Wheelbase: | 1430 mm / 56.3 in | 1410 mm / 56.6 in |
| Seat Height: | 820 mm / 32.3 in | 790 mm / 31.1 in |
| Dry Weight: | 214.5 kg / 474 lbs | 198 kg / 436 lbs |
| Fuel Capacity: | 21 Litres / 5.5 US gal / 4.6 Imp gal | 17 Litres / 4.4 US gal / 3.7 Imp gal |
| Consumption Average: | 5.1 L/100 km / 19.8 km/l / 46.6 US mpg / 55.9 Imp mpg | 5.4 L/100 km / 18.5 km/l / 43.5 US mpg / 52.3 Imp mpg |
| Standing ¼ Mile: | 11.3 sec / 200 km/h / 124 mph | 10.6 sec / 207.4 km/h / 128.9 mph |
| Top Speed: | 251 km/h / 156 mph | 255.1 km/h / 158.5 mph |