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speight1823
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VBMWMO #1823
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What plating was used as original on a 1928 BMW studs , nuts and washers? Was it a bright or mat finish?

Darryl.Richman
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Plating on prewar BMW's

As I understand it, all plating at this time was bright nickel.

But some items you might expect to be plated were painted. Spokes definitely fall into this category. The large majority of photos I have seen of this period of BMWs show painted handlebars, but there's a significant minority of plated ones, too.

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brown3459
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Plating on prewar BMW's

While on this topic, what was the first year for chrome? Would the leaf springs on my 32 R16 be chromed or nickel and if nickel, bright or dull?

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Darryl.Richman
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Plating on prewar BMW's

I believe -- but have no hard proof -- that chrome came in in the very early 30s. By the time the R12 came out in '35, everything was definitely chrome. I can't tell the difference between nickel and chrome in the b&w photos I have to look at.

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Bruce Frey
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Plating on prewar BMW's

I did a little research on this a few years ago and my results were the same as Darryl's. According to what I could find on the internet, large scale commercial use of chrome plating began in 1931-1932.

I have no idea when BMW started, but my guess is that the change began when they introduced a new part (such as the changes on the different series of R11-R16, R2, etc.) or had to re-order an existing part as a rolling change.

To follow up on part of the original question, it is clear that many of the nuts were nickel plated (and still used through the early R12/R17)....but what about the studs? I have never seen any trace of plating on any of the old studs I have. They appear to have the black "atr" finish or could even be unfinished.

Does anyone know about the finish on the studs?

Bruce

Peter D. Nettesheim
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Plating

For Motorcycles:

1923-1932 Nickel. polished
1932 on- Chrome
Don't ask me when in 32 it changed.

speight1823
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Plating on prewar BMW's

Did BMW not go direct from nickel to cadmium in the 30'ies?
Post war and late 30'ies nuts look like cadium but I am not an expert.
The comment about not plating the studs is interesting. This was my impression. I like to try and stick to the origial finish as far as possible and would rather under restore than over restore.

Darryl.Richman
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Plating on prewar BMW's

Most things that were cad plated after the war were either chrome plated or painted before the war. I cannot tell from the photos I have if there had been any cad plating before the war.

For example, from investigating period photos, I believe that spokes were painted until the R5 came out in 1936, and that they were then chrome plated. Of course, a couple years later they went back to paint because chrome was being used for war materiel.

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