hilsen build questions

[Seth Vidal]

Hey,
some dumb questions I couldn't find answers to on the interwebs:

1. what length bottom bracket spindle would go on a hilsen with a
double like the sugino alpina? 110?
2. what would it be with a triple like an xd2? 107?
3. Does anyone know how to measure a rear derailler to figure out what
it's maximum cog size is? I have an ultegra rd and the only label on
the cage is 'XF' so I can't tell if it is SS or GS.

Thanks
-sv

[Jim Thill - Hiawatha Cyclery]

If I'm not mistaken, max cog size (27t) is the same on both Ultegra derailleurs, but the longer cage version makes it work with a triple.

[Joe Bernard]

I believe 107 is for the "Quickbeam" double on Rivendells. I'm using a 113 with a Sugino Triple on my Hilsen.

[Bruce Herbitter]

You can almost always shift a bigger cog than spec. Definately with Ultegra long cage.

On Sat, Nov 5, 2011 at 3:38 PM, Joe Bernard <joer...@gmail.com> wrote:

I believe 107 is for the "Quickbeam" double on Rivendells. I'm using a 113 with a Sugino Triple on my Hilsen.

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[Elton Pope-Lance]

Shimano used to state that the max cog size for either Ultegra was 27t.  They now state 28t, IFIRC.  This may be because they now make Ultegra level 11-28 cassettes.  Either Ultegra model will comfortably manage a 30t cog - that's the reason that Sheldon introduced the Harris custom Century Special cassettes in 13-30 and 12-30.   They play nicely together.  Some have gotten them to work with 32t cogs by reversing the "B" adjustment screw and the like, but the setup can be a bit finicky.

I'm happily running an Ultegra GS (medium cage) on my Atlantis with a 13-30 Century Special and a 20-33-46 triple.

http://harriscyclery.net/product/harris-custom-century-special-13-30-9-speed-cassette-702.htm

Elton Pope-Lance

Natick, MA

On Nov 5, 2011, at 3:24 PM, Jim Thill - Hiawatha Cyclery wrote:

If I'm not mistaken, max cog size (27t) is the same on both Ultegra derailleurs, but the longer cage version makes it work with a triple.

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[William]

Your dropout geometry plays a role as well.  Some dropouts hold the r der closer to the cogs than others.  So it's not a purely inherent property of the derailer itself.