The cream coloured bicycle was taken sometime on Thursday 2 July between 08:15 and 16:30.
Police are appealing for anyone who may have seen this happen or has seen the bicycle since to come forward with any information.
They are asked to contact PC 137 Drummy on 01481 725111 or contact Crimestoppers anonymously on 0800 555 111.
Pictured top: The missing bicycle.