A CCTV image of a the man has been released by police, who would like to speak to him.
The incident took place at about 10.22am on June 9, at the Halfords store in Gazelle Close.
The man stole a Carrera Kraken mountain bike.
Investigating officer PC Paul Bentley from Wokingham police station said: “We are keen to speak to the man in the CCTV images as we believe he can help with our enquiries.
“It is believed the man went towards the Winnersh Triangle train station so if you know or recognise the man, or have any information about this incident, I would urge you to call Thames Valley Police on 101.”
If you recognise the man from the CCTV still or have any information about the incident, please contact investigating officer PC Bentley by ringing our single non-emergency number, 101.