Yamaha WR 450F (2009-10) vs Suzuki DR-Z 400S (2012-13)
Comparison technical specifications
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| Make: | Yamaha | Suzuki |
| Model: | WR 450F | DR-Z 400S |
| Years: | 2009-10 | 2012-13 |
| Engine: | Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder. | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 449 cc / 27.4 in | 398 cc / 24.3 cu-in |
| Bore x Stroke: | 95 x 63.4 mm | 90 x 62.6 mm. |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 12.5:1 | 11.3:1 |
| Lubrication: | Wet Sump | Dry sump |
| Induction: | 39mm Keihin FCR flat-slide throttle position sensor | Mikuni BSR36 carburetor |
| Ignition: | Digital CDI | Digital CDI |
| Starting: | Electric / Kick-starter | Electric |
| Max Power: | 58 hp / 42.3 kW @ 9000 rpm | 29.2 kW / 39.7 hp @ 8500 rpm |
| Max Torque: | 49 Nm / 33.1 lb-ft @ 7000 rpm | 39 Nm / 3.98 kg-m / 28.8 lb-ft @ 6600 rpm |
| Clutch: | Wet, multiple discs, cable operated | Wet, multiple discs, cable operated |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | "O" ring Chain | Chain, #520 |
| Front Suspension: | 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable | Telescopic, 49 mm, oil-damped, 11-way compression damping, adjustable spring preload |
| Front Wheel Travel: | 300 mm / 11.8 in | 290 mm / 11.4 in |
| Rear Suspension: | Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment | Link-type, fully adjustable spring preload, 26-way compression damping |
| Rear Wheel Travel: | 318 mm / 12.4 in | 295 mm / 11.6 in |
| Front Brakes: | Single 250mm disc 4 piston caliper | Single 250mm disc, 2 piston caliper |
| Rear Brakes: | Single 245mm disc 2-piston caliper | Single 220mm disc, 1 piston caliper |
| Front Tyre: | 80/100-21 | 80/100-21 |
| Rear Tyre: | 110/100-18 | 120/90-18 |
| Dimensions: | Length 2175 mm / 85.6 in Width 825 mm / 32.5 in Height 1300 mm / 51.2 in | Length 2310 mm / 90.9 in Width 875 mm / 34.4 in. Height 1230 mm / 48.4 in |
| Wheelbase: | 1485 mm / 58.5 in | 1485 mm / 58.5 in |
| Ground Clearance: | 365 mm / 14.3 in | 300 mm / 11.8 in |
| Seat Height: | 998 mm / 39.3 in | 935 mm / 36.8 in |
| Dry Weight: | 112.5 kg / 248 lbs | 132 kg / 291 lbs |
| Fuel Capacity: | 8 Liters / 2.1 US gal | 10 Litres / 2.6 US gal / 2.2 Imp gal |