John Jorgensen wrote:
>
(snip)
> Who started the trend to allen key brake fixing bolt nuts? That swept
> through in the 70's to be finally fully endorsed by the component
> manufacturer's just a little beyond the CR timeline?
>From an old post:
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Here's a new subject for discussion... Allen key bolt fittings on
bicycles. The earliest Allen head bolts I'm aware of are the two large
ones on the Tullio Campagnolo's 1951 Gran Sport rear derailleur. In
1958, when the Record 5-pin cotterless crank was introduced, Tullio got
a patent granted on hollow chainring bolts with Allen key hole and crank
bolt cover with Allen key hole. In 1971 the Campagnolo Allen seatbinder
bolt was introduced.
I think around 1960 Cino Cinelli introduced the aluminum 1A stem with the Allen stem bolt and then around 1972 added the Allen handlebar binder bolt.
T.A. had an Allen key seat post binder bolt (ref:365) and the same with cable hanger (ref:368), but I don't know the intro date.
Anyone with other examples with introduction dates?
Chuck Schmidt South Pasadena, CA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chuck Schmidt South Pasadena, Southern California
.