Kawasaki KH 500 (1976-77) vs Yamaha XJ 400 Special (1981) vs Kawasaki Z 900 (1976) vs Moto Guzzi V9 Bobber (2019-20)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Kawasaki | Moto Guzzi |
| Model: | KH 500 | XJ 400 Special | Z 900 | V9 Bobber |
| Years: | 1976-77 | 1981 | 1976 | 2019-20 |
| Engine: | Two stroke, transverse three cylinder, piston valve | Four stroke, transverse four cylinder. DOHC | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | Transversal 90° V-twin, 4-stroke, 2-valves per cylinder |
| Capacity: | 498 cc/ 30.4 cu-in | 398 cc / 24.2 cu-in | 903 cc / 55.1 cu-in | 853 cc / 52.0 cu in |
| Bore x Stroke: | 60 х 58.8mm | 51 х 48.8 mm | 66 x 66 mm | 84 x 77 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled, | Air/oil cooled |
| Compression Ratio: | 6.8:1 | 9.7:1 | 8.5:1 | 10.5:1 |
| Induction: | 3x Mikuni VM28SC carburetors | 2x 34mm Mikuni carburetor | 4x 26mm Mikuni VM26SS | Marelli MIU single-body electronic injection, integrated management of traction control on 2 levels |
| Ignition: | CDI | Battery powered inductive | Mechanical breaker dual lead coil | Electronic |
| Starting: | Kick | Electric | Electric | Electric |
| Max Power: | 52 hp / 38.7 kW @ 8000 rpm | 45 hp / 32.8 kW @ 10000 rpm | 81 hp / 59 kW @ 8500 rpm | 40.44 kW / 55 hp @ 6250 rpm |
| Max Torque: | 5.4 kgf-m / 39.0 lb-ft @ 6500 rpm | 3.5 kgf-m / 25 lb-ft@ 8000 rpm | 73.5 Nm / 52.8 lb-ft @ 7000 rpm | 62 Nm / 45.7 lb-ft @ 3000 rpm |
| Final Drive: | Chain | Chain | Chain | Shaft, double universal joint and double bevel gear units, 8:33 ratio |
| Front Suspension: | Telescopic Hydraulic forks | 35mm Telescopic forks | 36mm Telescopic forks | 40mm Standard fork |
| Rear Suspension: | Dual shocks, Swing arm | Single shock, adjustable spring preload | Dual shock, 5-way preload adjustment | Swingarm with double shock absorber with adjustable spring preload. |
| Front Brakes: | Single 296mm disc | Single discs 2 piston caliper | 2x 296mm discs | Single 320 mm stainless steel floating disc, Brembo opposed four-piston callipers |
| Rear Brakes: | 180mm Drum | Drum | 200mm drum | Single 260 mm stainless steel floating disc, Brembo opposed two-piston callipers |
| Front Tyre: | 3.25-19 | 3.00-19 | 3.25H-19 | 130/90 - 16 |
| Rear Tyre: | 4.00-18 | 110 90-18 | 4.00S-18 | 150/80 - 16 |
| Fuel Capacity: | 16 Litres / 4.2 US gal | 15 Litres / 3.9 US gal | 18 Litres / 4.7 gal | 15 Litres / 4.0 US gal |