Thieves stole a £1,000 bike, pictured above, from outside a gym.
The Carrera Banshee mountain bike was taken from energie Banbury in Middleton Road between 6.15pm and 7.20pm on Tuesday.
Owner Yasser Malik said he was planning on using it in a charity ride, adding: “It was a very unique custom one-off mountain bike which had my name on it. A lot of time and effort went into making the bike what it is.”
Anyone with information should contact Thames Valley Police on 101.