Old a headtube.

[Lil Steve]

Yeah is a old A headtube weaker than a pro headtube?

 

[ENERGY TURTLE]

Im pretty sure there not, there both aluminum, have thick side walls on the neck, and the headtube part is the same size. They are just different angles and the pro is shorter then the old a.

 

[dre]

Im pretty sure there not, there both aluminum, have thick side walls on the neck, and the headtube part is the same size. They are just different angles and the pro is shorter then the old a.

dude, im pretty sure they're both exactly the same...

 

[Spencer281]

I have both and i think that pro has gets wider at the bottom. It's not much of a difference though.