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Italian or English thread - bottom bracket
Hi there
I have a lovely old SAB frame that's never been used. How do I know what type of bottom bracket to buy? I understand there are Italian v English threads?
Thnaks
T
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.
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1 comments
Which frame do you have?
My mate has a Monopoli that's B.S.A. so that'd be my guess..
If you have English (ISO or B.S.A.) thread b/b the outer cup diameter will be 34.6-34.9mm and inner diameter will be 33.6-33.9mm. Shell width will be 68mm or 73mm. It will also have a left hand thread on the drive side.
If you have Italian thread b/b the outer cup diameter will be 35.6-35.9mm and the inner diameter will be 34.6-34.9mm. She'l width will be 70mm. It will also have right hand thread on both sides.
Hope this helps.