Andre padlowski wrote:
> i haven't been following the hi-e discussion as i'm without computer
> right now,
> but the spokes i have on my first generation hi-e wheelset are
> galvanized spokes of conventional design..
> the tricky part is that they are butted 1.5/1.8mm spokes..
> i am having a tough time sourcing replacements.
> even though dt swiss still lists a similar (revolution model) spoke in
> their catalog, i have not found a distributor that actually carries them.
>
> the simple solution would be to use straight gauge 1.8mm spokes, but
> that does not seem to be in the spirit of their original design
The issue drove me to dust off my 4th Ed. Sutherlands...p. 12-3. ISO and old French are both 1.5/1.8 (0.072"/0.059"), but the ISO is 56 tpi, while the French is 0.4 mm pitch. Same diameter, eh? But wait, 0.4 mm corresponds to 63.5 tpi, so nipples don't interchange.
The eye will not be able to tell the difference between either of those vs. the English 15/17 (wire guage), which is 0.072/0.056" and 56 tpi, but I'd be real leery about interchanging English spokes with ISO nipples, or vice versa.
Ah, one other little note, in case you find some old French Robergels or the equivalent. The French wire guage for these is not 15/17, but 10/12: you wouldn't expect French and English wire guages to correspond, would you, class? Indeed, Mr. Sutherland points out that increasing wire diameter gets bigger numbers in France, and smaller ones in England.
This may be on the test. :-)
harvey sachs mcLean va (I never had bothered to look up all this stuff before, for thanks for stimulating me to come to understand why so many spokes I have are incompatible with the wheels I'd like to repair!)