Silver Bird (streamliner)
# Silver Bird (streamliner)

Silver Bird was a motorcycle land-speed record setting streamliner motorcycle. It was powered by two motors delivering 240 horsepower (180 kW). It was the first motorcycle to set a speed record over 300 miles per hour (480 km/h), when ridden by Don Vesco at the Bonneville Speedway in 1975.

## Construction

The motorcycle was built by Don Vesco and sponsored by Yamaha. It had two four-cylinder, 694.9 cc reed-valve two-stroke engines from the Yamaha TZ750 racebike.

### Specifications

* Displacement: 1,389.8 cc total
* Engine bore and stroke: 64mm×54mm
* Dimensions: 21 feet long, 32 inches high
* Weight: c. 900 pounds (410 kg)
