Very nice looking bike! This is my favorite era of MTB - early 90’s, as this was when I got into it somewhat seriously living in Colorado Springs. These old bikes bring me back to my early 20’s when all I cared about was riding my mountain bike, a 1993 Nishiki Ariel up in the mountains around Colorado Springs. Good times for sure!
Could you post up a pic of the chainstay/BB junction from the non drive side? Those look suspiciously like the “Hipstay” design implemented by Gary Fisher back in the late 80’s… just for curiosity sake.