interchangeable

Are there any straight swap analogue speedos for Vmax ? e.g. virago/xjr ?

Did a search but didn't turn up what I was looking for. What front brake rotors will swap? For example, I would assume 85-96 to swap, right? I know they changed things in the later years, but what's the most recent model front rotors I can put on my '85 (excluding aftermarket, for now)?