Kawasaki Z 650 (2020) vs Yamaha RD 250 (1972)
Comparison technical specifications
Add bike |
Remove bike |
Remove bike |
| Make: | Kawasaki | Yamaha |
| Model: | Z 650 | RD 250 |
| Years: | 2020 | 1972 |
| Engine: | Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder. | Two stroke, torque induction, parallel twin |
| Capacity: | 649 cc / 39.65 cu /in | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 83 x 60 mm | 54 х 54 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 10.8:1 | 6.7:1 |
| Lubrication: | Wet sump | Autolube |
| Induction: | DFI® with Keihin 36mm Keihin throttle bodies | 2x Mikuni VM28 SC carburetor |
| Ignition: | TCBI with electronic advance | Battery and coil with breaker points |
| Starting: | Electric | Kick |
| Max Power: | 50.2 kW / 67.3 hp @ 8,500 rpm | 30 hp / 22.3 kW @ 7500 rpm |
| Max Torque: | 65.7 Nm / 48.4 lb-ft @ 7000 rpm | 21 lb-ft / 2.9 kgf-m @ 7000 rpm |
| Clutch: | Wet multi-disc, manual | Wet multi-plate |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Sealed chain | Chain |
| Gear Ratio: | 1st 2.438 (39/16) 2nd 1.714 (36/21) 3rd 1.333 (32/24) 4th 1.111 (30/27) 5th 0.966 (28/29) 6th 0.852 (23/27) | 1st 19.67 / 2nd 13.6 / 3rd 10.08 4th 7.59 / 5th 6.79 / 6th 6.01 |
| Front Suspension: | 41 mm hydraulic telescopic fork | Telescopic forks |
| Rear Suspension: | Horizontal Back-link with adjustable preload | Dual shocks |
| Front Brakes: | 2x 300mm discs 4 piston calipers | Drum |
| Rear Brakes: | Single 220mm disc | Drum |
| Front Tyre: | 120/70 -17 | 3.00S-18-4PR |
| Rear Tyre: | 160/50 -17 | 3.50S-18-4PR |
| Dimensions: | Length 2055 mm / 80.9 in. Width 779 mm / 30.6 in Height 1080 mm / 42.5 in | Length 2030 mm / 79.9 in Width 830 mm / 32.6 in Height 1085 mm / 42.7 in |
| Wheelbase: | 1410 mm / 55.5 in. | 1325 mm / 52.1 in |
| Ground Clearance: | 130 mm / 5.1 in | 150 mm / 5.9 in |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 16.5 Liters / 4.2 US gal |