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Fastest conventional motorcycle speed (male)

Fastest conventional motorcycle speed (male)
Who
Richard Assen
What
420.546 kilometre(s) per hour
When
23 September 2011
The fastest speed achieved by a partially streamlined motorcycle is 420.546 km/h (261.315 mph) which was achieved by Richard Assen (New Zealand) riding a modified Suzuki GSX1300R Hayabusa (Japan) at Bonneville Salt Flats, Utah, USA, on 23 September 2011. A partially streamlined motorcycle is one in which the rider is not completely enclosed by the fairing or bodywork. In accordance with standard speed record practice, the record is the average of two timed runs over a mile (1.6 km) in opposite directions.