Scitsu were motorcycles produced in 1981 to a design by Tony Dawson of Astralite.
The most notable feature of this machine was the frame that was made from two plates of aluminium bolted together, in the same manner as the Astralite wheels. The machine was successful in the 125cc road-racing class.
Plans were afoot to fit the frame with a number of Sachs engines of various capacities, but this did not eventuate.
Note: Prior to 1981, the machine had been called the Manxman.
Addendum: Dawson Harmsworth was established in March 1978 to manufacture high performance motorcycle components mainly for the road racing fraternity. The first major product was Astralite wheels, which became the most popular wheel in racing during the seventies and eighties. Shortly after the start of wheel production, a joint venture between Tony Dawson and Rod Kitchen of SRA was formed to manufacture the Scitsu Tachometer. Over the years six world championships have been won by teams/riders using Scitsu instruments. The company was founded on the principle of giving 'value for money' and a service to customers based on the experience of having themselves been racers thus having a deep comprehension of the needs of fellow sports motorcyclists.