The serial number is found in three places.
1. For sixthreezero bicycles, the serial number can be found on a yellow sticker on the box.
2. For all non-electric bikes, the serial number is found on the very bottom of the bike, underneath the area where the cranks attach. You will need to flip your bike upside down to see it. Please reference the photo below.
3. For e-BIKES, the serial number is stamped into the very front of the bike, below the head badge on the head tube.
LOCATION FOR NON-ELECTRIC BIKES: