Auction house H&H Classics will put up the sale of their acquired 1969 Honda Z50A. A bike that was once used by John Lennon, the legendary English singer, songwriter, musician, and peace activist who also co-founded the Beatles, the most commercially successful band in the history of popular music.

The auction will be held at the National Motorcycle Museum in Solihull, a town in the West Midlands of England. Experts believe the bike will fetch at least £30,000 (more than $40,000).

Between 1969-71, the Beatle used to hop on his monkey bike and roam around his Tittenhurst Park estate in the Surrey, England, countryside. Then in 1971, Lennon migrated to New York selling it to Henry Graham, a British poet.

It was currently in the position of a yachtsman from Dorset, England called John Harrington, who had purchased this bike from Henry Graham in 1971 for £250 ($340). The yachtsman used the bike to travel around foreign ports but didn't know for long that the bike was once, in fact, Jonh Lennon's.

He researched its origins after seeing a photograph of Lennon riding it with his son Julian and confirmed the authenticity of the bike in 2011. Harrington then began displaying it to the public but never thought of selling it. The bike even has an 'Extensive history file including green log book, old MOTs, Honda dating letter etc'.

He had once rejected an offer of £90,000 ($122,000) for the bike, because “like a fine wine it becomes more valuable with time.”

Another former Beatles star Ringo Starr also owned a monkey bike which he gifted to his gardner in 1986. That bike was eventually sold for £36,000 ($ 49,000) in 2008.

With a starting bid of £0, there’s no telling as to how much the current owners will expect from this piece of Rock 'n' Roll. All we can do is wait for the auction to conclude in March and we will have our final price.