Originally Posted by bertinjim

PTL001-

Not a clunker but a multi purpose all rounder. Bikes of that period were used on poorly surface roads and for all aspects of cycling as so ably pointed out by other commenters. My restored PX 10 is of the same period as yours but is equipped with correct period equipment. It rides well but does not have the razor edge agility of an 80s PX. My framebuilder measured the angles during the restoration and the headtube is 72 degrees and the seattube is a laid back 70 so no surprise that it rides differently from more focused modern designs. Get some tubular wheels, crank them up to 110 psi and see what the bike is really like.