Police in Hambleton and Richmondshire are reminding cyclists to take adequate security measures.
The warning comes following a rise in cycle thefts in the area, including the theft of a mountain bike worth £2,000, which was taken from a rear garden in Northallerton.
During the last month, a total of eighteen cycles have been stolen, sixteen of which were taken from the owner's home address.
PC Nick Hill, of the Operation Wagtail Unit, who is investigating the thefts, said: "Many of these thefts have occurred when cycles have been left unsecured in gardens or rear yards.
"The vast majority of these offences could have been prevented if the cycles had been secured whilst at the owner's home address.
"I urge all cyclists to make adequate security arrangements. Many thefts are committed by opportunist thieves. The more obstacles you put in their way, the less likely they are to have an opportunity to steal your belongings.
"Even the most basic crime prevention methods could mean the difference."
To help keep your cycle secure, please follow the advice below:
11.47am - 28 July 2011