The Cyr wheel (also known as the roue Cyr, mono wheel, or simple wheel) is an acrobatic device popularized in the early 21st century.The cyr wheel was popularized as a circus skill by numerous acrobats and circus artists during the 1990s and later by Daniel Cyr in 2003, who presented the first cyr wheel circus act at the 2003 Festival Mondial du Cirque de Demain in Paris. He won the Silver Medal for his performance. Cyr claims he created it without any awareness of previous similar devices, although there is no evidence for this claim.