RE: [CR]RE: 4 Different B/B specs.


Example: Component Manufacturers

From: Mark Bulgier <mark@bulgier.net>
To: Huemax@aol.com, classicrendezvous@bikelist.org
Subject: RE: [CR]RE: 4 Different B/B specs.
Date: Tue, 21 May 2002 20:24:26 -0700


>
> > I still do not know the "1" at thread size stand
> > for, maybe 1 inch=25.4mm?
>
> It means "one thread per millimeter".

Close - it means "one millimeter per thread" Unlike the Inch system, where a larger number means a finer thread, in metric a larger number means coarser. 8 x 1.25 is seen on a lot of stem and seatpost bolts; 5 x 0.8 is the common thread of toe clip and fender bolts

Mark Bulgier
Seattle, Wa
USA