Got this off bmxmuseum.com :
890 - late 70s-'86
900 - '79-'86
1000 - '79-'86
901 - '85- ?
880 - '85-'87
883 Nippon - '86-present
990 - '87-present
Is everyone in agreement with this
Just want to get a handle on some era correctness issues i'm dealing with
Also... I assume the 1020's would slide right in with the 890 dates