Sorry if this has been hashed out before...
Can someone briefly list (or point me to a timeline showing) when the 1A, 1R, 1E and X/A were introduced and (except for X/A) when each went out of production?
What is the difference between a 1A and a 1E?
Bonus question: When did the various Cinelli logos (or no-logo) appear on these stems and on handlebars?
Lee Berg
Palo Alto, Calif.