question about BB GXP/british

[vav]

So a forumite is interested in my Klein FS: http://forums.thepaceline.net/showthread.php?t=163114&highlight=klein

and found online this frame requires a GXP BB. I went to my basement and tried both a Shimano british treaded square taper and a hollowtech II. They both went in fine.

My question is : GXP comes in british/italian threading? or is it a different standard all together?

Thanks in advance

[kramnnim]

Your Klein has a BSA/English threaded BB shell.

GXP is the BB/Crank interface, similar to Hollowtech II but slightly different.

Yes, you can purchase GXP BB cups for Italian threaded frames, but you don't need one for your Klein.

[David Tollefson]

Standard English (or Italian if you can find it). BUT... if by some strange reason your BB is backwards (like you're a framebuilder in a hurry and braze in the BB shell backwards), GXP won't work -- the cups are side-specific, unlike Mega-Exo or Shimano outboard bearing (which can be swapped and Loc-Tited in place). Don't ask me why I know this...

[vav]

Thanks guys for the clarification.