What Year Is My SE Big Flyer?
 

I’m new to SE bikes. I’ve looked everywhere for an SE bikes serial number decoder and am having no luck?

It is either a 19xx or a 20xx! With zero info nobody can really tell you much of anything. Photos are handy but you would need to get involved with the active threads in this forum and get 5+5 posts and you will be able to post photos.

You could also reach out to SE and see if they can help.