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It has a split chain stay, not the welded block behind the bottom bracket. I think that that is the Super Streak difference. But if anyone knows for sure, I would appreciate the feedback. All of the decals were remove and I plan to order the replacements soon. I want to get it right. The serial # is F3120051 stamped on bottom bracket which indicates it was made in Akisu, Taiwan according to Old School Diamond Backs Website. Also, it has a loop tale. I believe DB change the drop outs after 1983. The front triangle gusset is the shorter version than what I have seen on the Silver Streak. This one is pretty rare in the museum.

Last edited by oldschoolrevisit1986 (2008-08-01 12:25pm)

Personally I think it's a Viper but PM Sparky on here or check his website http://www.os-db.net/1983.html

O.K. here is the official skinny on this beauty. I have been in contact with Sparky (thanks for the info) at os-db.net and he gave me the following details: According to the F3.....ect. serial number (indicates it is a "late 1983"), the split chain stay, the loop tail, the short two weld gusset, CRMO stamped on the rear loop tail drop out, and Aikisu stamped on the fork drop out make this a taiwanese replacement to the Silver Streak. Originally stickered the Diamond Back II with silver streak on the chain stay, it was quickly recognized by dealers as a Taiwanese replacement and dubbed the "Super Streak" among dealers to differentiate between the two manufactures. In early 1984 the bikes were re-stickered and re-named the Pacer 500. So if you have a late 83 with the above details you own  Taiwan built Silver Streak replacement. If it has an 84 (I.E. F4....ect.. serial number) it is a Pacer 500. After that DB switch to an 84 Formula 1 with a non- looped tail and the same specs. Hope this helps all of those out there trying to identify a frame with these features.

Thanks Mark. Hoping to do this one up with the DB II Decals and I'm gonna throw on the Silver Streak stay decals as well.