Yamaha XS 400 DOHC (1982-) vs Kawasaki GTR1000 / ZG 1000 Concours (1990-93) vs Harley-Davidson Harley Davidson XL 883 Sportster (1997-98) vs Yamaha YZF1000 R1 (2006)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Harley-Davidson | Yamaha |
| Model: | XS 400 DOHC | GTR1000 / ZG 1000 Concours | Harley Davidson XL 883 Sportster | YZF1000 R1 |
| Years: | 1982- | 1990-93 | 1997-98 | 2006 |
| Engine: | Four stroke, parallel twin, DOHC, 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder. |
| Capacity: | 399 cc / 24.3 cu-in | 997 cc / 60.8 cu-in | 883 cc / 53.9 cub in. | 998 cc / 60.9 cu-in |
| Bore x Stroke: | 69.0 x 53.4 mm | 74 x 58 mm | 76.2 x 96.8 mm | 77 X 53.6 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 9.7:1 | 10.2:1 | 8.8:1 | 12.1:1 |
| Induction: | 2x 32mm Mikuni carburetors | 4 x 32mm Keihin CV carburetors | Carburetion (40 mm constant velocity with enrichener and accelerator pump) Air Cleaner/Filter Oval “racetrack”; | Fuel injection, dual-valve throttle bodies with motor-driven secondary valves, 45 mm throttle body |
| Ignition: | Transistorized | Electronic | Digital CDI | TCI (Transistor Controlled Ignition) |
| Starting: | Electric | Electric | Electric | Electric |
| Max Torque: | 3.5 kgf-m / 25.3 lb-ft @ 8000 rpm | 10 kgf-m @ 6500 rpm | 69 Nm 52 lb-ft @ 4300 rpm | 106.6 Nm / 10.87 kg-m @ 10500 rpm (Ram-air) |
| Transmission: | 6 Speed | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Shaft | Belt | #530 O-ring chain |
| Front Suspension: | Hydraulic telescopic forks | 41mm Telescopic, air-assisted adjustable preload | 39mm Conventional cartridge forks | 43mm Special Öhlins inverted telescopic fork w/adjustable preload, compression damping, rebound damping, |
| Rear Suspension: | Monocross system with single coil sprung, gas/oil damped shock, pre-load adjustable | UNI-TRAK with adjustable preload, rebound damping and air pressure | Dual shocks Coil-over; preload dual-adjustable | Single Öhlins shock w/adjustable preload, separate high & low-speed compression damping, rebound damping, |
| Front Brakes: | Single 10.5 in disc | 2x 272mm discs 1 piston caliper | Single 292mm disc 2 piston calipers | 2 x 320mm discs 4 piston calipers |
| Rear Brakes: | Drum | Single 280mm disc 1 piston caliper | Single 292mm disc 1 piston calipers | Single 220mm disc 4 piston caliper |
| Front Tyre: | 3.00-18 | 110/80 VR18 | 100/90-19 | 120/70 ZR17 |
| Rear Tyre: | 4.10-18 | 130/80 VR16 | 130/90HB16 | 190/50 ZR17 |
| Rake: | 63° | 28°, | 29.6° | 24° |
| Trail: | 95 mm / 3.74 in | 100 mm / 3.9 in | 117 mm / 4.6 in | 91 mm / 3.8 in |
| Wheelbase: | 54.1 in | 1554 mm / 61.2 in | 1522 mm / 60 in | 1405 mm / 55.7 in |
| Seat Height: | 30.9 in | 797 mm / 31.0 in | 711.2 mm / 28 in | 833 mm / 32.3 in |
| Dry Weight: | kg / 366 lbs | 270 kg / 595 lbs | 222 kg / 489.0 lbs | 174 kg / 383.6 lbs |
| Fuel Capacity: | 17 Litres / 4.4 US gal | 28.5 Litres / 7.5 US gal | 17 Litres / 4.5 US gal | 18 Litres / 4.7 gal |