Jenni Morton-Humphreys said police told her not to attempt to steal the bike back from the dude who took it, but after they declined to accompany her to the thief's residence, she had no choice but to take matters into her own hands.
She instead relied on a good samaritan named Chris who had seen her request on Facebook for information about her bike and arranged a meeting with the seller, named "Bebop", after spotting his online advertisement.
The man was left holding only an empty packet of cigarettes and the keys - which was from the lock that had been cut from Ms Morton-Humphreys's bike.
The 30-year-old then arranged to meet the seller, despite warnings from police not to try and retrieve it.
She said: 'I pretended to be interested and asked silly questions about the bike.
"I handed them to this guy as I got on the bike and said 'here, hold my stuff".
Ms Morton-Humphreys, whose sting has gone viral on social media, said she now uses her "less expensive" bike to travel around Bristol.
"I made sure I had nothing on me, no possessions at all apart from the stuff in my hands - and they were a cigarette packet and a set of keys".
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'That meant he let go of the bike for the first time.
"I pedalled as fast as I could".
Someone shouted "she's not coming back" and the shocked bike thief began texting Jenni's co-conspirator, who had pretended to be her brother.
She added: "I didn't look back to see if they were chasing me". My main thought was that I was anxious because I didn't really know where I was, where I was going, or the area at all, and I was anxious that I might have to go back that way or end up going round in a circle.
The furious seller told Morton-Humphreys" accomplice: "I need 95 quid lively'.
"She's probably took it straight home", the man replied, according to the newspaper.
A victim of bike theft has succeeded in "stealing back" her own chopper from the thief who took it.
'Lesson to be learned son.
She said: 'They had spruced the bike up a bit overnight - they'd even fixed the front light'.