Jawa 640 Black Style, White Style, Blue Style, Red Style (1995) vs Ducati 907ie (1990)
Comparison technical specifications
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| Make: | Jawa | Ducati |
| Model: | 640 Black Style, White Style, Blue Style, Red Style | 907ie |
| Years: | 1995 | 1990 |
| Engine: | Two stroke, parallel twin | Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valve per cylinder, belt driven |
| Capacity: | 343.4 cc / 21.0 cu in | 904 cc / 55.2 cu in |
| Bore x Stroke: | 58 x 65 mm | 92 x 68 mm |
| Compression Ratio: | 9.8:1 | 9.2:1 |
| Cooling System: | Air cooled | Liquid cooled |
| Induction: | Jikov 28-29 CE horizontal carburetor, slide type | Weber-Marelli IAW 043 system that integrated ignition and electronic fuel injection. |
| Ignition: | Magneto VAPE A67 contactless | Marelli Digiplex variable advance |
| Battery: | 12V, 6Ah | 12V 19Ah |
| Starting: | Kick | Electric |
| Max Power: | 17.2 kW / 23.5 hp @ 5250 rpm | 66.2 kW / 90 hp @ 8500 rpm |
| Clutch: | Multi disc in oil bath | Dry, multiplate |
| Transmission: | 4 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Gear Ratios: | 1st 14.50 / 2nd 8.60 / 3rd 6.10 / 4th 4:96:1 | 1st 2.466 / 2nd / 1.764 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857:1 |
| Front Suspension: | Hydraulic telescopic fork, steel spiral springs | 42 mm Marzocchi M1R oil-dynamic fork provided with external adjusting system of the extension brake |
| Rear Suspension: | Swingarm, hydraulic telescopic in suspension units, spiral springs | Swinging fork with oil-dynamic adjustable mono shock, Marzocchi Duoshock |
| Front Brakes: | Ø265 mm Disc, hydraulic control | 1991: 2 x 300 mm Discs, 2 piston calipers 1992: 2 x 320 mm Discs, 2 piston calipers |
| Rear Brakes: | Ø165 mm Drum, mechanical control | Single 245 mm disc, 1 piston caliper |
| Rear Tyre: | 2.15 B x 18" | 170/60-17 |
| Dimensions: | Length: 2100 mm / 82.7 in Width: 780 mm / 30.7 in Height: 1160 mm / 45.7 in | Length: 2090 mm / 82.3 in Width: 700 mm / 27.6 in Height: 1160 mm / 45.7 in |
| Wheelbase: | 1370 mm / 53.9 in | 1490 mm / 58.7 in |
| Seat Height: | 820 mm / 32.3 in | 780 mm / 30.7 in |
| Dry Weight: | 149 kg / 328 lbs | 215 kg / 474 lbs |
| Fuel Capacity: | 17 L / 4.5 US gal | 21 L / 5.5 US gal / 4.6 Imp gal |