Despite its popularity, bicycling has its hazards, including theft.

Authorities are trying to crack down on it, and Arlington County officials said this week that a 42-year-old man was sentenced on Oct. 18 to 12 years behind bars in connection with multiple bicycle thefts.

County officials said Michael Cullen, who has no fixed address, pleaded guilty to eight counts of grand larceny with intent to sell.

Chief county prosecutor Theophani K. Stamos emphasized the importance of protecting residents’ property and said thieves “will be prosecuted to the fullest.”

In a statement, officials said several other arrests have been made, including that of a man spotted riding one bike while rolling another beside him.