A black and white Specialized Camber Comp 29 bike, worth £2,000, was stolen from a holiday lodge in the Rudding Park estate in Harrogate, sometime between Monday 15 April and Tuesday 16 April 2013.
Detectives have released an image of the bike and are appealing to anyone who has been offered it for sale to get in touch.
Officers would also like to hear from anyone who saw any suspicious activity in the area around the time of the theft to come forward with information.
Anyone who can help the investigation is urged to contact North Yorkshire Police on 101 – select option 2 – and ask for Detective Constable Chris Spackman or Harrogate CID.
Alternatively, information can be emailed to Christopher.firstname.lastname@example.org
If you wish to remain anonymous, Crimestoppers can be contacted on 0800 555 111.
Please quote reference number 12130059987 when passing information about this incident.