BB Advice needed

[Wannabe]

I need to replace the BB on my Dacordi Mitico, but has trouble locating the correct BB.

Took it out and found the following info.

Sealed Shimano BB, marked BB 6500

Crankset Ultegra 9spd with splines, hollow crank.

On BB marked 109.5mm (obviously the length of cage

On BB cups, 36x24T (surely refers to diameter and thread)

That is all I could get from BB

Shops want to know if it is English or British thread. Surely it can be ascertained from info given. Logic tells me it SHOULD be a Italian, as it is an Italian frame. How can I be sure what BB I should order, as I must shop around for the best price!!??

 

[Cruxpearl]

It's an Italian Thread BB (36x24T)

[Wannabe]

Crux, what logic tells me too, but what make you certain about it. What part of the info I supplied tells you it is Italian.

Want to know, so I can give the salespersons at Bikeshops hell.

[Hanx]

You tighten a British BB anti-clock wise, and a Italian clock-wise.smileys/smiley4.gif

[GoLefty!!]

Bottom Bracket Thread Name	Nominal Thread Description	Cup Ouside Diameter	Shell Inside Diameter
ISO/English	1.37? x 24 TPI Park Tool tap part number #691-RH (for non-drive) #692-LH (for drive)	34.6-34.9mm Left-hand thread on drive side	33.6-33.9mm
Italian	36mm x 24 TPI Park Tool tap #693 (two required)	35.6-35.9mm Right-hand thread both sides	34.6-34.9mm

[Wannabe]

TX Guys. My old man always told me that you are never to old too learn. Guess it's true!!!