The incident happened between 1.30pm on Saturday 3 April and 3pm on Sunday 4 April 2021 when the victim found the white, red and blue mountain bike missing from an address in Lavender Hill.
A 51-year-old local man was arrested on 8 April on suspicion of burglary and theft. He was later released pending further enquiries.
Anyone who has seen the bike or knows where it might be is urged to call Kent Police on 01622 604100, quoting crime reference 46/56236/21.
You can also contact Kent Crimestoppers, anonymously, on 0800 555111 or by using the online form on their website.