I don't know when it was standardised but the bikes I've come across from the 50s (a Viking, Hercules and a Bates) used 5/32" or 1/8" I've not come across any that use 3/16"
Cheers
Julius Naim London UK
On 4 Jun 2007, at 19:27, classicrendezvous-request@bikelist.org wrote:
> ----------------------------------------------------------------------
>
> Date: Mon, 4 Jun 2007 09:35:05 -0700
> From: "Peter Brueggeman" <pbrueggeman@ucsd.edu>
> To: <classicrendezvous@bikelist.org>
> Subject: [CR]size of ball bearings in British headsets of 1950s?
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> What size ball bearings are used in British headsets as found in
> lightweight
> road bikes of the 1950s like Brampton, etc? Is it 5/32" ??
>
> I know Raleigh has its difference in some cases, and I'm asking about
> headsets found in non-Raleigh road bikes like Bates, Macleans,
> Flying Scott,
> Rotrax, Hetchins, etc
>
> I couldn't find this in the CR Archives. Thanks, Peter
> ============================================
> Peter Brueggeman
> La Jolla California USA
> pbrueggeman(AT)ucsd.edu