Thieves took a seven-year-old boy's bike from the back garden of his Gorleston home.
Police are investigating the incident in New College Close between 9.30pm on Friday, August 17 and 5.30pm on Monday, August 20.
The 'Hood Alley' BMX style bike has a black frame with white skeleton fish on it, stunt pegs on the front and rear and it had a stand.
It has a bald patch on the back tyre from doing skids, and the bell does not work.
The boy's mother said he had saved up his pocket money to buy the bike and is very upset.
The bike is only 3 months old.
Call PC Jon Sillom with information on 101.
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