North Yorkshire Police say it occurred on October 2, at about 10.45am, at Huntington College.
A police spokesman stated: “CCTV exhibits an individual in distinctive clothes within the space, and using the bike away.
“Should you see the stolen bike, or know the place it’s, or recognise the distinctive clothes pictured, please e-mail katie.hicks@northyorkshire.police.uk.
”You may also name North Yorkshire Police on 101 and ask for 720. Should you want to stay nameless, you may go data to Crimestoppers on 0800 555 111. Please quote reference 12240181117.”
