Yamaha YZF-R 15 V3.0 (2017-18) vs Yamaha XS 650 / TX 650A (1974) vs Honda VT 250F-II (1984-85)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Honda |
| Model: | YZF-R 15 V3.0 | XS 650 / TX 650A | VT 250F-II |
| Years: | 2017-18 | 1974 | 1984-85 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve with Variable Valve Actuation | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | Four stroke, V-Twin, DOHC, 4 valves per cylinder |
| Capacity: | 155.1 cc / 9.14 cu-in | 653 cc / 39.8 cu in | 248 cc / 15.2 cu-in |
| Bore x Stroke: | 58.0 × 58.7 mm | 75 x 74 mm | 60 x 44.1 mm |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 11.6:1 | 8.4:1 | 11.0:1 |
| Induction: | Fuel Injection | 2 x Mikuni BS38 carburetors | 2x 32mm Keihin carburetors |
| Ignition: | TCI | Battery, induction coil | Transistorized |
| Starting: | Electric | Electric and kick | Electric |
| Max Power: | 14.1 kW / 19 hp @ 10000 rpm | 39.5 kW / 53 hp @ 7200 rpm | 35 hp / 25.5 kW @ 11000 rpm |
| Max Torque: | 14.7 Nm / 40.8 lb-ft @ 8500 rpm | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm | 21.5 Nm / 15.9 lb-ft @ 10000 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain 520 O-ring |
| Front Suspension: | Up-sidedown Telescopic fork | Telescopic forks | Air assisted telescopic forks |
| Rear Suspension: | Aluminum swingarm with monoshock | Dual shock absorbers | Pro-link air assisted monoshock |
| Front Brakes: | Single 282mm disc 2 piston caliper | Single disc | Single disc |
| Rear Brakes: | Single 240mm disc 1 piston caliper | Drum | Drum |
| Front Tyre: | 100/80 -17 | 3.50H-19 4PR | 100/90-16 54S |
| Rear Tyre: | 140/70 -17 | 4.00H-18 4PR | 120/80-17 61S |
| Wheelbase: | 1355 mm / 53.3 inc | 1435 mm / 56.5" | 1385 mm / 54.5 in |
| Fuel Capacity: | 11.5 Litres / 3.0 US gal | 15 Litres / 4.0 US gal | 14 Litres / 3.7 US gal |