Kawasaki KLX 250S (2017) vs Suzuki DR-Z 400SM (2013-14) vs Ducati 250 Formula 3 (1960-62) vs Suzuki GSX-R 1000 Commemorative Edition (2013) vs Suzuki RF 400R (1995-96)
Comparison technical specifications
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| Make: | Kawasaki | Suzuki | Ducati | Suzuki | Suzuki |
| Model: | KLX 250S | DR-Z 400SM | 250 Formula 3 | GSX-R 1000 Commemorative Edition | RF 400R |
| Years: | 2017 | 2013-14 | 1960-62 | 2013 | 1995-96 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, single cylinder, SOHC, shaft and bevel gear driven, 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder, TSCC | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 249 cc / 15.2 cu-in | 398 cc / 24.3 cu-in | 248.6 cc / 15.2 cu in | 998.6 cc / 60.9 cub. in | 398 cc / 24.3 cu in |
| Bore x Stroke: | 72 х 61.2 mm | 90 x 62.6 mm. | 74 x 57.8 mm | 74.5 x 57.3 mm | 40.4 x 56 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled | Liquid cooled | Liquid cooled |
| Induction: | Keihin CVK34 carburetor | Mikuni BSR36 CV carburetor | Dell'Orto SS1 29A carburetor | Fuel Injection | Mikuni 32 mm carburetors |
| Starting: | Electric | Electric | Kick | Electric | Electric |
| Max Power: | 27 hp / 22.3 kW @ 8500 rpm | 29.2 kW / 39.7 hp @ 8500 rpm (rear wheel: 24.9 kW / 33.4 hp | 17.2 kW / 23 hp @ 8200 rpm | 136.1 kW / 182.5 hp @ 12000rpm | 42.3 kW / 58 hp @ 11000 rpm |
| Transmission: | 6 Speed | 5 Speed | 4 Speed | 6 Speed, constant mesh | 6 Speed |
| Final Drive: | Chain | Chain, #520 | Chain | Chain, DID50VAZ, 114 links | Chain |
| Frame: | Steel, Double cradle frame | Chrome-moly steel frame, single front down tube | Single cradle tubular frame | Aluminium, twin spar | Hollow steel perimeter frame |
| Front Suspension: | 43 mm Inverted cartridge fork with 16-Way compression damping adjustment | Telescopic, 49 mm, oil-damped, 11-way compression damping, adjustable spring preload | Hydraulic telescopic fork | Inverted telescopic, coil spring, oil damped | 41mm Telescopic forks, preload adjustable. |
| Rear Suspension: | Uni-Trak® with Adjustable preload, 16-Way compression and Rebound damping adjustment | Link-type, fully adjustable spring preload, 26-way compression damping | Swingarm, dual shocks | Link type, coil spring, oil damped | Link-type single shock, rebound and preload adjustable. |
| Front Brakes: | Single 250mm disc 2 piston caliper | Single 310 mm floating disc, 2 piston caliper | Drum | 2 x 310 mm Discs radial mount Brembo monobloc 4 piston caliper | 2 x Discs, 4 piston caliper |
| Rear Brakes: | Single 230mm disc 1 piston caliper | Single 240mm disc, 1 piston caliper | Drum | Single 220 mm disc | Single disc, 2 piston caliper |
| Front Tyre: | 80/100-21 | 120/70-17 | 2.50 -19 | 120/70 ZR17 M/C (58W), tubeless | 120/70-17 |
| Rear Tyre: | 100/100-18 | 140/70-17 | 2.75 -19 | 190/50 ZR17 M/C (73W), tubeless | 160/60-17 |