Kawasaki Z 750 Twin (1976) vs Kawasaki Z 1000 (2005-06) vs Yamaha SR 400 (1983-87) vs Triumph Bonneville T100 50th Anniversary (2009)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Yamaha | Triumph |
| Model: | Z 750 Twin | Z 1000 | SR 400 | Bonneville T100 50th Anniversary |
| Years: | 1976 | 2005-06 | 1983-87 | 2009 |
| Engine: | Four stroke, parallel twin cylinder, 2 valve per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder. | Four stroke, single cylinder, SOHC, 2 valves per cylinder. | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 745 cc / 54.45 cub in. | 953 cc / 58.1 cu-in | 399 cc / 24.3 cu-in | 865 cc / 52.8 cu in |
| Bore x Stroke: | 78 х 78 mm | 77.2 x 50.9 mm | 87 х 67.2 mm | 90 x 68 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Air-cooled |
| Compression Ratio: | 8.5:1 | 11.2:1 | 8.5:1 | 9.2:1 |
| Lubrication: | Wet sump | Wet sump | Dry sump | Wet sump |
| Induction: | 2x 38 mm Mikuni carburetors | 4x 38mm throttle bodies | BSR33 carburetor | Fuel injection |
| Ignition: | Battery, coil | Digital | CDI | Digital |
| Starting: | Electric & kick | Electric | Kick | Electric |
| Max Power: | 41 kW / 55 hp @ 7000 rpm | 127 hp / 92.7 kW @ 10000 rpm | 27 hp / 17.1 KW @ 7000 rpm | 50 kW / 67 hp @ 7500 rpm |
| Max Torque: | 60.8 Nm / 6.2 kg-fm / 44.8 ft.lbs @ 3000 rpm | 95.6 Nm / 70.5 ft/ lbs @ 8000 rpm | 27.4 Nm / 6.3 kgf-m @ 6500 rpm | 69 Nm / 7.04 kgf-m / 51 ft-lb @ 5800 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed | 5 Speed |
| Front Suspension: | Telehydraulic fork | 41mm cartridge fork, rebound, spring preload adjustable | Telescopic fork | 41mm Kayaba telescopic forks |
| Rear Suspension: | Swinging fork | Uni-Trak, rebound spring preload adjustable | Dual shocks | Kayaba chrome spring twin shocks with adjustable preload |
| Front Brakes: | Single disc, 250 mm | 2x 300mm 4 piston calipers | Single disc | Single 310 mm disc, 2 piston calipers |
| Rear Brakes: | Single disc, 230 mm | Single 292mm disc 2 piston caliper | Drum | Single 255 mm disc, 2 piston calipers |
| Front Tyre: | 3.25H-19 | 120/70 R17 | 3.50-19 | 100/90 19 |
| Rear Tyre: | 4.00H-18 | 190/50 R17 | 4.00-16 | 130/80 17 |
| Fuel Capacity: | 14.5 Litres / 3.8 US gal | 18 Litres / 4.8 US gal | 12 Litres / 3.2 gal | 16.6 Litres / 4.4 US gal / 3.7 Imp gal |