Officers from Sudbury will be marking bicycles for free in partnership with Sudbury Town Council.
The event takes place Thursday, January 21, at Market Hill, 10am to 12pm.
Members of the public are invited to take their bicycles along to be security marked.
General cycle awareness will also be available.
Top tips for cycle security include; using a heavy-duty bike lock, leaving your bike where clearly visible and locking the bike to an immovable object.