Residents are being urged by police to register their bicycles online to prevent theft in the city.
A new website, bikeregister.com, has been set up to increase the chances of stolen bikes being returned to owners.
It is part of a city-wide effort by Thames Valley Police to cut the number of thefts, of which last year there were 1,955, 377 fewer than the one before.
Over the last week the force has carried out a series of stings targeted at bike thieves and those who handle stolen cycles in Oxford.
Police said 11 arrests have been made, with six people charged or cautioned for theft and three others for being in possession of stolen bikes.
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