A motorcyclist performs a stunt during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019. (Photos: Xinhua)

Motorcycles are on display during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.

Motorcycles are presented during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.

A man stands by a motorcycle during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.

A motorcyclist performs a stunt during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.

A motorcyclist performs a stunt during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.

A motorcyclist performs a stunt during Salao Duas Rodas, a biennial motorcycle trade show, in Sao Paulo, Brazil, on Nov. 21, 2019.