Yamaha RD350
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The RD350 is a two-stroke motorcycle produced by Yamaha from 1973 to 1975. It evolved directly from the piston port, front drum-braked, five-speed Yamaha 350 cc "R5".
The engine is an air-cooled, parallel twin, six-speed, reed valve-equipped... Wikipedia
Top speed: 105 mph (169 km/h)
Bore / stroke: 64 mm × 54 mm (2.5 in × 2.1 in)
Brakes: Front: disc (Indian RD350: drum); Rear: drum
Class: Sport bike
Compression ratio: 6.6:1
Dimensions: L: 2.04 m (6 ft 8 in); W: 0.835 m (2 ft 8.9 in); H: 1.11 m (3 ft 8 in)
Engine: 347 cc (21.2 cu in) air-cooled, two-stroke parallel twin