Video courtesy of jn1.tv
A Hungarian Jewish group said the title "unequivocally refers to the tortuous deaths of more than 400,000 of our compatriots killed in Auschwitz with poisonous gas."
The rally had been due to take place in Budapest on April 21 – the same day as a planned Holocaust memorial event.
Antal Rogan, the head of Hungarian Prime Minister Viktor Orban’s parliamentary group, said in a statement that the bikers’ rally was "extraordinarily tasteless" and he "deeply condemned" it.
Concern over anti-Semitism has been growing in Hungary in recent years with the rise of the far-right Jobbik party, which now has 47 seats in parliament making it’s the country’s third-largest party.
Last November, a Jobbik MP urged the government to draw up a list of Jews who he said posed a "national security risk." The remark outraged Hungarians who saw echoes of fascist policies that led to the Holocaust and prompted the largest protests in the country since the end of communism.