I don't know if the A means it's Italian or US, but mine (US) uses 27.2. Masi did not always use tube types consistently, i.e. all Columbus or all 531.
Ken Freeman Ann Arbor, MI
-----Original Message----- From: classicrendezvous-bounces@bikelist.org [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of JEFFERY Pyzyk Sent: Tuesday, August 15, 2006 6:08 PM To: classicrendezvous@bikelist.org Subject: [CR]Masi Seat Post Diameter
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