I'm clueless when it comes to mountain bikes, but when I saw this unusually framed Nishiki on Facebook Marketplace for $20, I figured I could do something with it. Suntour XC components throughout. Did some research on it when I got it home: it was $1,000 new, a bit of a rarity, and the chain stays are called "elevated chain stays." I'll overhaul it and sell it to someone who would really appreciate it.