I see this thread is 5 years old but was wondering if anyone ever resolved the issue with decoding the serial numbers on Tommasini bikes. I have a Comp, and was really curious as to the date. The serial number is 854-01, but see here the first number might be the date, which does not correlate to the production years notes here. Awesome bike, pretty much untouched for the last 20 years hanging in my house. Thanks