Currently in a situation where I’m pretty sure the mirrors need to be replaced. I’m trying to figure out the best way to know what size of mirror to replace them with because the websites that I’ve looked at for replacement mirrors have 20 mm options as well as 25 mm options. What’s the best way to go about measuring the encasement for the mirror to see what size the mirror is supposed to be? Or is there some other way to figure out the mirror size without physically removing them?
The only way to be 100% sure is to remove a mirror and measure it. That being said if you measure the portion of the mirror that is visible, you should be able to extrapolate the final dimension.