Easy Rider motorcycle has been auctioned for $1.35 million despite claims it is not authentic.

The customized motorcycle is said to have “starred” in the 1969 movie classic.

California auction house Profiles in History said bidding had been fierce but did not name the buyer.

Reportedly used in Easy Rider‘s climactic crash scene, the Harley-Davidson was restored by actor Dan Haggerty.

Yet the bike’s authenticity has been questioned by another collector who claims he owns the actual chopper used.

Gordon Granger of Texas also claims he has a certificate, signed by Grizzly Adams star Dan Haggerty, proving his bike is the genuine article.

The customized motorcycle sold at California auction is said to have starred in 1969 movie classic Easy Rider

Dan Haggerty, who had a small role in the counterculture classic, admitted to the Los Angeles Times he had authenticated and sold two Captain America bikes – the character played by Peter Fonda in the film.

Yet he insisted that only of them was genuine – the one belonging to California real estate agent Michael Eisenberg that was sold on October 18.

Michael Eisenberg bought the bike in 2014 from another man who had purchased it from Dan Haggerty 12 years earlier.

The chopper bears the signature of Peter Fonda on its teardrop-shaped gas tank, though he too has queried its veracity.

Decorated with the American flag, the bike sold on October 18 features a forward-angled front wheel and handlebars and fishtail exhaust pipes.

The chopper previously spent 12 years on display at the National Motorcycle Museum in Anamosa, Iowa.

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