Richard Lowe's bike. The reward for finding the person who stole it is $100,000.

His post was met with a mixture of jokes and crime concerns from others, and gathered more than 50 comments.

Asked if his post was serious, Mr Lowe said: "The reward is correct. I want to find this person."

Mr Lowe does not think he will see his retro-style "beach cruiser" bicycle again, but he is more interested in finding the person who stole it.

"I know it's just a bike, but it was my bike and it sucks that people can do this so blatantly and nothing will ever happen to them."