Jawa 640 Black Style, White Style, Blue Style, Red Style (1995) vs Yamaha RD 250 (1979) vs Yamaha XS 400L Maxim (1982-) vs MV Agusta Brutal 800 Pirelli Special Edition (2016) vs Kawasaki ZL 400 Eliminator (1986-91)
Comparison technical specifications
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| Make: | Jawa | Yamaha | Yamaha | MV Agusta | Kawasaki |
| Model: | 640 Black Style, White Style, Blue Style, Red Style | RD 250 | XS 400L Maxim | Brutal 800 Pirelli Special Edition | ZL 400 Eliminator |
| Years: | 1995 | 1979 | 1982- | 2016 | 1986-91 |
| Engine: | Two stroke, parallel twin | Two stroke, torque induction, parallel twin | Four stroke, parallel twin, DOHC, 2 valves per cylinder | Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder | Four stroke, four cylinder. DOHC |
| Capacity: | 343.4 cc / 21.0 cu in | 247 cc / 15.0 cu-in | 399 cc / 24.3 cu-in | 798 cc / 48.69 cu-in | 398 cc / 24.2 cu-in |
| Bore x Stroke: | 58 x 65 mm | 54 х 54 mm | 69.0 x 53.4 mm | 79 x 54.3 mm | 56 х 40.4 mm |
| Compression Ratio: | 9.8:1 | 6.7:1 | 9.7:1 | 13.3;1 | 11.0:1 |
| Cooling System: | Air cooled | Air cooled | Air cooled | Liquid Cooled | Liquid cooled |
| Induction: | Jikov 28-29 CE horizontal carburetor, slide type | 2x Mikuni VM28 SC carburetor | 2x 32mm Mikuni carburetors | Integrated ignition - injection system MVICS (Motor & Vehicle Integrated Control System) with three injectors Engine control unit Eldor EM2.0, throttle body full drive by wire Mikuni, pencil-coil with ion-sensing technology, control of detonation and misfire Torque control with four maps, Traction Control with eight levels of intervention | 4x 30 mm Keihin CV |
| Ignition: | Magneto VAPE A67 contactless | Battery and coil with breaker points | Transistorized | Multipoint electronic injection | CDI |
| Starting: | Kick | Kick | Electric | Electric | Electric |
| Max Power: | 17.2 kW / 23.5 hp @ 5250 rpm | 30 hp / 22.3 kW @ 7500 rpm | 45.5 hp / 34 kW @ 9500 rpm | 92 kW / 125 hp @ 11600 rpm | 54 hp / 40.2 kW @ 12000 rpm |
| Max Torque: | 31.4 Nm / 3.2 kgf-m / 23.2 ft.lb @ 4750 rpm | 21 lb-ft / 2.9 kgf-m @ 7000 rpm | 3.5 kgf-m / 25.3 lb-ft @ 8000 rpm | 81 Nm / 8.25 kgf-m @ 9600 rpm. | 3.4 kgf-m / 24.5 lb-ft @ 10500 rpm |
| Transmission: | 4 Speed | 6 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Chain | Shaft |
| Front Suspension: | Hydraulic telescopic fork, steel spiral springs | Telescopic forks | Hydraulic telescopic forks | Marzocchi "UPSIDE DOWN" telescopic hydraulic fork with rebound-compression damping and spring preload external and separate adjustment 43 mm | Telescopic forks |
| Rear Suspension: | Swingarm, hydraulic telescopic in suspension units, spiral springs | Dual shocks | Monocross system with single coil sprung, gas/oil damped shock, pre-load adjustable | Progressive Sachs, single shock absorber with rebound and compression damping and spring preload adjustment Aluminium alloy | Dual shocks |
| Front Brakes: | Ø265 mm Disc, hydraulic control | Single 267mm disc | Single 10.5 in disc | 2x 320mm floating discs 4 piston calipers | Single disc |
| Rear Brakes: | Ø165 mm Drum, mechanical control | Single 267mm disc | Drum | Single 220mm disc 2 piston caliper | Drum |
| Rear Tyre: | 2.15 B x 18" | 3.50S-18-4PR | 4.10-18 | 180/55 ZR -17 | 150/80-15 |
| Dry Weight: | 149 kg / 328 lbs | 152 kg / 335 lbs | kg / 366 lbs | 167 Kg / 368.2 lbs | 192 kg / 423 lbs |
| Fuel Capacity: | 17 L / 4.5 US gal | 16.5 Liters / 4.2 US gal | 17 Litres / 4.4 US gal | 16.6 Litres / 4.39 US gal | 13 Litres / 3.4 US gal |