I don't understand the title of this thread.
The 24 hour world record for a motorcycle was set 62 years ago by a 500 cc Velocette Venom at an average speed of 100.05 mph in 1961 at Autodrome de Linas-Montlhéry, a banked oval racetrack in France.
This record has never been beaten by any motorcycle of any capacity.
Unfortunately the record breaking machine was basically destroyed in the UK National Museum fire although a replica has been rebuilt.
Velos are pretty damn good bikes.