How to find your VIN
Include the VIN (Vehicle Identification Number) in your ad if your motorcycle was built after 1980. It adds credibility.
If your bike is older than 1981, leave this field blank. The VIN will not match the standard format. You can put it in the description.
For motorcycles the VIN is in two places. It's on the frame and on the engine case.
It's also on the title and probably on your insurance papers.