Attention Masi Mafia. I recently purchased a 1971 Masi Gran Criterium, stamped M56A on the bottom bracket with 11 71 stamped on the fort tube. It is came as a very original bike with all correct dated Nuovo Record, etc. and what appears to be original paint. The seat post is a 26.8 and appears to be a proper fit. Is this correct? Also, does anyone know the significance, if any, of the "A" suffix on the bb stamp?
Jeffery Pyzyk
Milwaukee, WI