Is this bicycle still available?
The 20" Schwinn Cruiser was not offered in 1980. I have a collection of these bicycles and they were offered in 1981 and 1982 only.
Nobody on this site is an expert we are all bicycle historians, knowing Schwinn's demise during 1980 - 1982 "The End".
Frames were built prior to factory strike, most all the frames started with the serial number MR.
The reason for the numbers on the head badge is when Schwinn would have assembled the bicycle to be sold, this being 1981 0r 1982.
Your bicycle has a hand brake fork, I have never seen this on these bicycles.
Here is a Specification sheet from 1981 showing this bicycle.
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