Yamaha YZF 600R Thundercat (1999) vs Ducati 900 SS (1981) vs Yamaha GTS1000 / ABS (1997-99) vs Kawasaki VN 900 Vulcan Custom (2009-10)
Comparison technical specifications
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| Make: | Yamaha | Ducati | Yamaha | Kawasaki |
| Model: | YZF 600R Thundercat | 900 SS | GTS1000 / ABS | VN 900 Vulcan Custom |
| Years: | 1999 | 1981 | 1997-99 | 2009-10 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder. | Four stroke, V-twin, SOHC, 4 valves per cylinder |
| Capacity: | 599 cc / 36.5 cu-in | 864 cc / 52.7 cu in | 1002 cc / 61.2 cu-in | 903 cc / 49 cu-in |
| Bore x Stroke: | 62 x 49.6 mm | 86 x 74.4 mm | 75.5 X 56 mm | 88.0 x 74.2 mm |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 12.0:1 | 9.4:1 | 10.8:1 | 9.5:1 |
| Induction: | 4 x 36 mm Keihin CV downdraft carburetors | 2 x Dell'Orto PHF 32C carburetors | Electronic fuel infection. | 2x 34mm ø Fuel injection with dual throttles |
| Ignition: | Digital TCI | Electronic | Digital | Digital |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 72.9 kW / 100 hp @ 11500 rpm | 47.8 kW / 65 hp @ 7500 rpm | 102 hp / 74.4 kW @ 9000 rpm | 37 kW / 50 hp @ 5700 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | 530 O-ring chain OEM sprocket sizes per tooth Front= 15 Back= 47 | Chain | Chain | Belt |
| Front Suspension: | 41 mm telescopic fork adjustable preload, compression and rebound damping | Marzocchi telescopic fork | Single sided swingarm variable preload, compression and rebound damping | 41mm telescopic fork with 7-way preload |
| Rear Suspension: | Monoshock adjustable preload, bump and rebound | Marzocchi dual shocks, 3-way adjustable | Monocross variable preload, compression and rebound damping | Uni-Trak with 7-way adjustable preload |
| Front Brakes: | 2x 300 mm Discs, 4 piston calipers | 2 x 280 mm Disc, 1 piston caliper | Single 330mm disc 6 piston caliper with ABS | Single 300mm disc |
| Rear Brakes: | Single 245mm disc, 2 piston caliper | Single 280 mm disc | Single 282mm disc 2 piston caliper | Single 270mm disc |
| Dimensions: | Length 2060mm / 81.1 in Width 754 mm / 29.6 in Height 1190 mm / 46.8 in | Length: 2260 mm / 88.9 in Width: 700 mm / 27.6 in Height: 1280 mm / 50.4 in | Length 2170 mm / 85.4 in Width 700 mm / 27.5 in Height 1320 mm / 51.9 in | Length 2405 mm / 94.7 ub Width 894 mm / 35.2 in Heigh 1120 mm / 44.1 in |
| Wheelbase: | 1415 mm / 55.7 in | 1550 mm / 61.0 in | 1495 mm / 58.9 in | 1646 mm / 64.8 in |
| Seat Height: | 810 mm / 31.7 in | 740 mm / 29.1 in | 790 mm / 31.1 in | 685 mm / 27.0 in |
| Wet Weight: | 210 kg / 463 lbs | 224 kg / 494 lbs | 278.2 kg / 613.3 lbs | 277 kg / 610.8 lbs |
| Fuel Capacity: | 19 Litres / 5.0 US gal / 4.2 Imp gal | 15 L / 4.0 US gal / 3.3 Imp gal | 20 Litres / 5.28 gal | 20 Litres / 5.3 US gal |