Yamaha 250 V4
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 | |
| Manufacturer | Yamaha |
|---|---|
| Production | 1967–1968 |
| Class | 250 cc |
| Engine | 246.3 cc (15.03 cu in) 2-stroke, liquid-cooled, 70° V4 |
| Bore / stroke | 44 mm × 40.5 mm (1.73 in × 1.59 in) |
| Top speed | 144 mph (232 km/h) |
| Power | > 73 hp (54 kW) @ 14000 rpm |
| Transmission | 8-speed, chain final drive[3] |
| Suspension | Telescopic forks (front); swing arm with twin spring/shock absorbers (rear) |
| Brakes | Twin leading-shoe drum (front & rear) |
Yamaha 250 V4 (RD05A) is an air-cooled road racing motorcycle made by Yamaha, produced between 1967 and 1968, and competed until 1972.[4][5][6]