Yamaha YZF 600 R6 20th Anniversary Edition by YARD (2020) vs Kawasaki ZX-R 250 Ninja (1997-98) vs Royal Enfield Bullet G5 Deluxe EFI (2009-11)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Royal Enfield |
| Model: | YZF 600 R6 20th Anniversary Edition by YARD | ZX-R 250 Ninja | Bullet G5 Deluxe EFI |
| Years: | 2020 | 1997-98 | 2009-11 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four Stroke, single Cylinder, OHV |
| Capacity: | 599 cc / 36.5 cu-in | 249 cc / 15.2 cu-in | 499 cc / 30.4 cu-in |
| Bore x Stroke: | 67 x 42.5 mm | 49 x 33.1 mm | 84 x 90 mm |
| Compression Ratio: | 13.1;1 | 12.2:1 | 8.5:1 |
| Cooling System: | Liquid cooled | Liquid cooled | Air Cooled |
| Induction: | Fuel injection with YCC-T and YCC-I | 4x Keihin CVK D30 carburetors | Electronic Fuel Injection (EFI) |
| Ignition: | TCI: Transistor Controlled Ignition | TCBI | Electronic Ignition Keihin |
| Starting: | Electric | Electric | Electric & Kick |
| Max Power: | 87.1 kW / 116.7 hp @ 14500 rpm | 45 hp / 32.8 kW @ 15000 rpm | 20.3 kW / 27.2 hp @ 5200 rpm |
| Max Torque: | 61.7 Nm / 45.5 lb-ft @ 10500 rpm | 2.6 kgf-m / 24.5 Nm @ 11500 rpm | 41.3 Nm / 4.2 kgf-m / 30.5 lb-ft @ 4000 rpm |
| Clutch: | Wet, slipper, cable operated | Wet, Multi-disc, Manual, Cable-actuated | Wet, multiplate |
| Transmission: | 6 Speed | 6 Speed | 5 Speed, constant mesh |
| Final Drive: | O-ring chain | Chain | Chain |
| Frame: | Deltabox aluminium frame with revised rigidity balance | Perimeter, pressed aluminium | Single downtube, engine used as stress member |
| Front Suspension: | 43mm KYB telescopic forks | Telescopic forks | Telescopic, Hydraulic Damping, Stroke 130 mm wheel travel |
| Rear Suspension: | KYB® piggyback shock, 4-way adjustable | Uni-track, Swing arm | Swing Arm With Gas Shock Absorbers, Stroke 80 mm wheel travel |
| Front Brakes: | 2x 320mm discs 4 piston calipers | 2x discs 2 piston calipers | Single 280mm disc |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single disc 1 piston caliper | Foot operated, 153 mm drum |
| Front Tyre: | 120/70 ZR17 | 110/70-R17 54H | 90/90 -19 |
| Rear Tyre: | 180/55 ZR17 | 140/60-R18 64H | 100/90 -19 |
| Dimensions: | Length 2,040 mm / 80.3 in Width 706 mm / 27.8 in Height 1095 mm / 43.1 in | Length 2000 mm / 78.7 in Width 685 mm / 27.0 in Height 1090 mm / 42.9 in | Length 2160 mm / 85.0 in Width 800 mm / 31.5 in Height 1050 mm / |
| Seat Height: | 850 mm / 33.5 in | 735 mm / 28.9 in | 800 mm / 31.5 in |
| Fuel Capacity: | 17.5 Litres / 4.5 US gal | 15 Litres / 3.4 US gal | 13.5 Litres / 3.2 US gal |