Hi, would anyone know what diameter seat post a 1977 Carlton Circuit should have? I'm building up a bare frame that came without one and measuring the seat tube is proving...inconclusive. Not sure if the tube is distorted but if I'm going to get physical with it, I'd like to be sure I'm making the correct post fit.
Measures 24.6 to 25.48 depending on where I measure!
Measures 24.6 to 25.48 depending on where I measure!