Brian Johnson

> I generally think of GS as offering quicker shifting, but
> having a more limited range for gearing. With the new carbon cage
> on the
> M972, I'm wondering if the added stiffness makes the point moot.
> Currently,
> I'm running a standard XTR 11-34 rear cogset and XTR front setup
> and that's
> a good overall setup for my riding.
>

Hi Greg.

The only advantage, really, that a short pulley cage is going to
offer is a shorter chain. This, in turn, means that you have a
smaller range of gearing (or at least a smaller selection of gear
ratios). You'll save a little weight due to the shorter chain,
shorter pulley cage, maybe one less chainring, and maybe fewer total
teeth on your cassette.

In actuality, both short and long cage RDs will give you the same
shifting performance. The difference on performance may have been
true in the 1980's but not anymore.

Any if the 11-34 is good for you, then stick with a long cage RD.

Good luck!

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