Looking at the graphics I'd say this is 91, as the headtube graphic is the same as the 91 Haro Sport I used to ride bitd, haro seemed to run graphics for two yearDo you know what year this model is? I'm looking to identify one just like it but in highlighter yellow.
With the CrMo bolt on rear triangle. I'm assuming it's from around 1990, but I can't find another example online. View attachment 868159