The Roundup made its debut in 1954, manufactured by Frank Hrubetz, USA. The ride was a quick success with licenses being issued in Europe (Swedish-based Gunnar Manson),Australian-based Ferrari, UK-based Cadoxton and Sam Ward’s Meteorite.
The ride movement is essentially a Rotor / Gravitron on a 50° angle using centrifugal force to keep riders in place. . The ride comes in 24 and 32 person units, racks on a single trailer and can be set up in 1.5 hours, making it appealing to the show owner.
The Roundup remains a popular with an appeal that has lasted through generations of carnival-goers.
In 2003, Dartron premiered a modernised design under the name Zero Gravity with improved loading, 33 person capacity and refined portability.
There are approximately 15 Roundups in Australia, at least 40 in the UK and 70+ in the USA.