Our records do not date back to the 80s or 90s. If you want the best guess/estimate of the year of production, you can hunt around on such sites as BMX MUSEUM, BMX SOCIETY, and VINTAGE BMX. You can post photos of your bike there and ask around in the forums. As far as how much your bike is worth – it’s worth whatever someone is willing to pay for it. It’s as simple as that. Explore the websites listed above and you may find somebody who is looking for the exact bike that you have.