Redline BMX or is it Redline decals on something else? I got this bicycle at a yard sale and thought it was a Redline BMX as that is what the decals on it are and same with head badge. Someone said it was not a Redline because the rear dropouts are not a Redline style. The original forks on it were genuine Redline forks as they had the RL stamp on the drops. 

I had to replace forks with generic ones after the dealer had to cut the forks to get the headset off for an overhaul, because the plumb was rusted stuck inside. It says made in Taiwan on the headset and has Diamondback handlebars and grips. The serial number is on the rear dropout non chain side with another number on chain side rear drop out reading G0187 serial number is 7014544.





thanks for helping if you can!
GO187 is the date code from Giant (Taiwan manufacturer), which is Jan '87.

Frame looks to be an '87 Diamondback.