kevin sayles wrote:
> Listers
>
> I've always had the belief that it was never the best proceedure to
> mix alloy bars with a chromed steel stem, the reaction between the
> two materials will cause a failure in due course?
>
I think the concern was more that the edge of the steel clamp being
thick and much stiffer and usually not provided with a radius was rough
on the bar in fatique loading
> But is this the case?......how come alloy seat posts don't
> fail?.........ok, some have been known to break.
Others have been known to end up in chips ;), alumnium in steel will corrode
>
> On the understanding that alloy can be chromed........I once had a
> pair of early Nuovo Record brake levers chromed......would it be
> beneficial to have a pair of alloy bars chromed, even if it's just
> the center section, so as to eliminate the contact of alloy against
> chromed steel???
>
I don't think the aluminium bar will care if the chrome it is in direct contact with is deposited on the stem or on the bar itself.
-- mvg
Marten Gerritsen
Kiel Windeweer
Netherlands