Re: [CR] Galvanised spokes

(Example: History:Ted Ernst)

reply-type=original


Hi John,

I had not thought of galvanised spokes providing "sacrificial galvanic" protection to a steel bike frame but if there is a good electrical connection between the wheels and frame then that is indeed what would happen with the spoke galvanising corroding in preference to the frame.

The reason that I mention this is that most galvanised spokes are eventually replaced with stainless spokes which does not afford the same level of galvanic protection and so does that mean that frames that have stood the test of time might now corrode away in front of our eyes.

Should we be fitting small strips of zinc to our cherished bikes ?

Regards

Ken Hume London, England


> John Hurley wrote:
>
> I've often wondered how certain
> steel items are protected if they aren't stainless, chromed or
> galvanized. Saddle rails and spokes come to mind. Zinc is effective,
> of course, but can be pretty dingy-looking. Maybe some of you amateur
> (or professional) metallurgist-types can comment.
>
> John Hurley
> Austin, Texas, USA

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