Master Sports Seagull - BB advice

Daniel Hood
Posts: 1
Joined: Fri Jan 18, 2013 11:23 am

Master Sports Seagull - BB advice

Postby Daniel Hood » Fri Jan 18, 2013 12:42 pm

Hey All,

I just bought, what I have been told is, a 1930's track-bike frame.

The BB casing measures 66mm.

From what I've read this morning a 68mm BB should fit, so long as the threads in the bb casing are English...

...But I have no idea whether the threads are, english, italian or otherwise.

Anyone know how I would measure or perhaps what threads Master Sports is known to have used?

Have attached a picture for fun.

Image

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