Nearly 7,000 bicycles have been stolen across the country in the last 16 months, according to gardaí.
A total of 6,845 bicycles have been reported stolen since January 2020 and 23 April, 2021.
The average value of the stolen bicycles is €500 while 10% of the bikes were worth €1,000 or more.
More than 70% of the bicycles were reported stolen in the Dublin Metropolitan Region for a total of 4,825 bikes.
The Cork City division recorded 299 bicycles thefts over the same period.
Gardaí said only one in five bicycle owners was able to provide a serial number when reporting the theft.
This makes it more difficult to return the bicycle to the owner.
A total of 2,139 bicycles were recovered throughout that period but these were not necessarily stolen during the same timeframe.
Gardaí said bicycles should be locked tightly to immovable objects and bike locks should be kept off the ground.