Ok, "really old" is relative. Anyway. Fresh from a dumpster, and riddled with ice, figure this one out. It is a KHS "Sport", Ser# 40401695 (1984?). Tig-welded, really thick, but not cast, dropouts, I am guessing straight guage tubes. What really has me intrigued are the cranks. TA copies, but "Alero"? They made BMX parts, but I have never seem this. The "Polygon" brakes, fork/headtube reincorcement, and shifter cable routing is also kinda weird. Any ideas??
Sorry for the messy shop.