As long as the two outer chainrings are within 6 or 8 teeth of each other a
NR works well as a triple front derailleur.
David Feldman
Vancouver, WA
>
>
> A number of chance occurences have just met in the vicinty of my Moto
Grand
> Record. First, I've got a Stronglight 93 which has the guard on it -- the
> big shiny ninja pants guard. That piece occupies the outer shoulder of
the
> spider, and the inner ring of the double is pushed into a position
equivalent
> to the inner ring of a triple.
>
> I'm actually sort of fond of that outer guard. I wish I had the perfect
bike
> to put it on - probably a nice Raleigh. A gentleman's Raleigh Pro. In
the
> absence of that bike, however, that setup gives me the option of running a
> triple instead of a double.
>
> Next, last night, I installed my new, cool, shiny, smooooooth Spidel BB.
> Turns out that the drive-side of the spindle is surprising long, and I
could
> now clear a triple. (Chainline is acceptable.) So.... let's say that I
> reduce the rear cog size a bit (currently a 26), and add an inner ring.
I'm
> curious how the NR f der would handle that. Looks to me like there would
be
> clearance. (I know, there may also be r der issues.... I'll handle them
> when I get to them, and I have the technology.) Which brings me to two
> questions.
>
> -- What was commonly used as a Campy f der, with Campy triples? Campy
> obviously made a number of generations of long cage rear ders. Were there
> long cage f ders to go with those, of which I am unaware? (What was the
> typical Campy triple inner ring -- 36, wasn't it?)
> -- And, does anyone have a smaller-than-42 Stronglight 93 ring, with which
> they would be willing to part? Maybe a 36? Maybe a 38? I don't know
what
> the small ring size limitation is on a 93. A 38 might would be kind'a
> purpose-defeating, although I'd certainly have lots of gears.
>
> Thanks, y'all,
>
> Peter Bridge
> Thornton, CO