vintage bars

[shankldu]

generaly speaking most older road bars are 26.0 correct ?

[EricEstlund]

It depends on the vintage. 25.4 was pretty common for a long time, as well as 23.5 and 25mm French stuff and the Cinelli 26.4 bars.

[DogpawSlim]

I'd say 26mm is less common than non-26mm in older drop bars.

[slowpoke]

Sheldon Brown's Bicycle Handlebar and Stem Dimension Crib Sheet (http://sheldonbrown.com/cribsheet-handlebars.html)