bb english or italian?

[rspecker]

I may switch my components from Ultegra triple to a Dura Ace 10 speed.

How do I know if the bb on my bike is threaded for "english" or "italian"? By the way, what is this difference?

I have a 2001 Legend TI, 1" steer tube.

[flydhest]

english and it's a difference in threading.

[pjm]

http://www.branfordbike.com/bottombr/bb3.html#item2