The BSA "integral" headset races are replaceable. On the other hand I think they last forever as the slim annular shape allows perfect heat treating and they are perfectly aligned because they float in hemispherical cups.
Joe
At 05:17 PM 4/20/01 -0700, Diane Feldman wrote:
>And another thing, new integral headsets have been thought out more
>thoroughly than those '40's to 70's Bianchi units; they use standard bearing
>cartridges; imagine that! Gee, praising threadless stems and hidden
>headsets, must have sucked too many diesel fumes on my ride this morning.
>David Feldman
>----- Original Message -----
>From: "Chuck Schmidt" <chuckschmidt@earthlink.net>
>To: <classicrendezvous@bikelist.org>
>Sent: Friday, April 20, 2001 1:36 PM
>Subject: Re: [CR]Re: The Pre Vs Post-1984 Debate
>
>
>> Randy August wrote:
>> >
>> > (snip) Even though I probably am
>> > a "technoweenie", it's gotten to the point that I find little joy
>anymore in
>> > reading about new bike hardware.
>> >
>> > Frame integral bearing races, Aheadsets and their stems, splined bottom
>> > brackets and hollow cranks all save a little (very little) weight but
>offer
>> > no advancement in real world functionality.
>>
>>
>> I think we are all a little old and jaded. Guys in their teens and 20s
>> are excited and enthusiastic about the latest and the greatest.
>>
>> Speaking of which...
>> Integral headset bearing races -- Bianchi and others early 1900s ?
>> Ahead-style stems -- French 1940s ?
>> Splined bottom brackets -- Italian Gnutti 1940s ?
>> Hollow cranks -- French Duprat (steel) 1930s ?
>>
>> Chuck Schmidt
>> South Pasadena, California
>> Sunny, puffy clouds, 70