Got a few minutes today to play with the ST90 again. The bike didn't have a taillight when I got it and I'm not a fan of the original big taillight, so I started making something different.
I had a light off of a S65, but the angle was wrong and I really don't want to drill any more holes in the original ST90 fender. So...I tacked together the S65 light, a mitered tube and a mounting bracket. I think it will work. Still have to finish weld and clean up, but wanted to see what it would look like.