Re: [CR] How to ID a Campy SR Ti BB?

(Example: Production Builders:Cinelli:Laser)

From: "Jim Merz" <jmerz@schat.com>
To: <aldoross4@siscom.net>
References: <4981f092.168.38cf.1802023298@siscom.net>
In-Reply-To: <4981f092.168.38cf.1802023298@siscom.net>
Date: Thu, 29 Jan 2009 10:31:12 -0800
Thread-Index: AcmCPNDU2goUayFFTGGw2ab7DAOhqQAAL3+w
Cc: classicrendezvous@bikelist.org
Subject: Re: [CR] How to ID a Campy SR Ti BB?


Campi made 2 versions of SR bb spindles that I knew of. The first version looked more or less like the steel record one but has the races made out of bearing steel. These races are pressed on and are clearly different than the one piece steel spindle. The later SR bb was the same except instead of the normal crank bolts they made a solid shaft with male threaded spuds on each side. So this bb used nuts to hold the crank on. SR bb spindles used smaller balls and are not suitable for use with record cups.

I know SR bb sets have a bad reputation, but I used them on my personal racing bikes without any problem. I was pretty hard on cranks though, I broke at least one arm a year back in the 1970's. I think this had to do with the fact that I rode in the city a lot. I would always sprint from a stoplight and I think this is what caused the problem. Campi always just replaced the broken parts, but if the arm broke while sprinting you can fly over the bars or get jagged edge into your leg. I broke at least one steel record BB shaft also.

Jim Merz 75degf in Big Sur CA

-----Original Message----- From: classicrendezvous-bounces@bikelist.org [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of aldoross4 Sent: Thursday, January 29, 2009 10:08 AM To: Cheung, Doland; classicrendezvous@bikelist.org Subject: Re: [CR] How to ID a Campy SR Ti BB?

Are the steel spindles magnetic???

Aldo Ross Middletown, Ohio, USA

----- Original Message Follows -----
From: "Cheung, Doland" <CheungD@bv.com>
To: "classicrendezvous@bikelist.org"
<classicrendezvous@bikelist.org>
Subject: [CR] How to ID a Campy SR Ti BB?
Date: Thu, 29 Jan 2009 12:04:47 -0600


> Any one know how to ID the above from a picture? Are

> there any markings on

> the Ti spindles to identify them as such from the regular

> steel spindles?

>

> Doland Cheung

> LA, CA