The Harford County Police Unity Tour took off from Philadelphia Tuesday.
It's a bike tradition honoring the brave men and women killed in the line of duty.
Sheriff's deputies and some Aberdeen police officers joined the tour. A total of 16 riders are participating in this year's fundraising and awareness bicycle ride.
The Harford County Police Unity Tour riders will end their journey at the site of the fallen officer's memorial in Washington, D.C. Friday May 12.