The best way to know what year a child trailer was made is to locate your serial number. The serial number is on a sticker in the rear cargo area (behind the seat) of the trailer. It should be on the left inside frame bar. For older trailers the sticker may be on the internal front frame bar where the children’s feet would be. Contact Burley with the serial number to be reviewed for the year and or model. If getting the serial number is not an option then you can try to find the year of manufacture using this “What year is my Burley?” guide.