Yamaha XT 600E (1999-00) vs Triumph Bonneville 750 T140E (1979) vs Kawasaki KE 125 (1979-82) vs Kawasaki G3-SS (1969-73)
Comparison technical specifications
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| Make: | Yamaha | Triumph | Kawasaki | Kawasaki |
| Model: | XT 600E | Bonneville 750 T140E | KE 125 | G3-SS |
| Years: | 1999-00 | 1979 | 1979-82 | 1969-73 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, parallel twin, OHV, 2 valves per cylinder | Two stroke, single cylinder, rotary valves | Two stroke, single cylinder, Rotary valves |
| Capacity: | 595 cc / 36.3 cu-in | 744 cc / 45.4 cu in | 124 cc / 7.6 cu-in | 89 cc / 5.4 cu-in |
| Bore x Stroke: | 95 x 84 mm | 76 x 82 mm | 56 х 50.6 mm | 47.0 x 51.8 mm |
| Cooling System: | Air/oil cooled | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 8.5:1 | 8.6:1 | 7.0:1 | 7.0:1 |
| Induction: | Single 28mm Y26PV carburetor | 2 x 30 mm Amal carburetors | Carburetor | Mikuni VM19SC Carburettor |
| Ignition: | T.C.I. | Battery / dual coil / dual points / Lucas | Membrane | Points |
| Starting: | Electric | Electric and kick | Kick | Kick |
| Max Power: | 45 hp / 32.8 kW @ 6500 rpm | 40.3 kW / 54 hp @ 6200 rpm | 13 hp / 9.6 kW @ 7500 rpm | 10.5 hp / 7.7 kW) @ 8000 rpm |
| Max Torque: | 50 Nm / 5.1 kg-m @ 5500 rpm | 56.6 Nm / 5.77 kgf-m / 41.8 ft-lb @5500 rpm | 1.5 kgf-m / 10.8 lb-ft @ 6000 rpm | 0.98 Nm / 0.7 lb-ft @ 7000 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain, 106 links | Chain | Chain |
| Front Suspension: | 41mm Telescopic forks, oil damped | Telescopic forks | Telescopic forks | Standard froks |
| Rear Suspension: | Monocross with preload adjustment, | Swingarm, Girling shocks, 3-way spring preload adjustable | Dual shocks | Dual shocks |
| Front Brakes: | Single 267mm discs 2 piston caliper | Single 254 mm disc, 1 piston caliper | Drum | Drum |
| Rear Brakes: | Single 220mm disc single piston caliper | Single 254 mm disc, 1 piston caliper | Drum | Drum |
| Front Tyre: | 90/90-21 | 3.25-19 | 2.75-21 | 2.75 -18 |
| Rear Tyre: | 120/90-17 | 4.00-18 | 3.50-18 | 2.75 -18 |
| Dry Weight: | 156 kg / 344 lbs | 200 kg / 441 lbs | 97 kg / 213.8 lbs | 83.0 kg / 183 lbs |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 18.2 Litres / 4.8 US gal / 4.0 Imp gal | 9.5 Litres / 2.5 US gal | 8.6 Litres / 2.2 US gal |