Yamaha YZF-R 25 (2018-19) vs Suzuki GS 650E (1981-82)
Comparison technical specifications
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| Make: | Yamaha | Suzuki |
| Model: | YZF-R 25 | GS 650E |
| Years: | 2018-19 | 1981-82 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder | Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder. |
| Capacity: | 249 cc / 15.1 cu-in | 673 cc / 41 cu in |
| Bore x Stroke: | 60 x 44.1 mm | 62 x 55.8 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 11.6:1 | 9.4:1 |
| Induction: | Electronic Fuel Injection | 4 x 32mm Mikuni carburetors |
| Ignition: | TCI: Transistor Controlled Ignition | Transistorized |
| Starting: | Electric | Electric |
| Max Power: | 26.5 kW / 36 PS @ 12000 rpm | 53.2 kW / 73 hp @ 9400 rpm |
| Max Torque: | 22.1 Nm / 16.7 lb-ft @ 10000 rpm | 57 Nm / 5.8 kgf-m / 42 lb-ft @ 8000 rpm |
| Transmission: | Constant Mesh, 6-speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | 41mm KYB® telescopic fork; | 35 mm Kayaba fork |
| Front Wheel Travel: | 130 mm / 5.1 in | 150 mm / 5.9 in |
| Rear Suspension: | KYB® single shock | Dual Kayaba shocks adjustable spring preload |
| Rear Wheel Travel: | 124.4 mm / 4.9 in | 100 mm / 3.9 in |
| Front Brakes: | Single 298mm disc 2 piston caliper | 2 x 275 mm discs, 1 piston calipers |
| Rear Brakes: | Single 220mm disc | Single 275 mm disc, 1 piston caliper |
| Front Tyre: | 110/70-17M/C 54H | 3.25 H19 |
| Rear Tyre: | 140/70-17M/C 66H | 3.75H 18 |
| Fuel Capacity: | 14 Litres / 3.7 gal | 16 Litres / 4.2 US gal / 3.5 Imp mpg |