Ola!OLD P.R. In Lancaster CA
I'm An Old Newbi (65) to riding in that it has been over forty years since I rode more than a Mile (honest). Got a Nishiki yard sale - MNountain Project with Suntour Derailer and Custom Crank, Serial Number does not Match any of the Types of Serial Numbers mention in the forums # SC81100117 . Where did it come from , other than Taiwan?
Formerly Known as Newbie
iHola! and welcome to Bike Forums!
I'd suggest you post that question in the Classic & Vintage Forum, they know a lot about older bikes.