On 10/22/2014 12:18 PM, Patrick Moore wrote:
The cog progression on the 11-40 is actually not bad, though of course it assumes a very small (~32 tooth) ring and though the gearing is clearly meant for singletrack. But the same principle applies to other terrain and other types of riding. I myself like the single ring setup for all my riding, saving my inner for exceptional hills
If you have an /*inner ring*/ you are "saving" you do not have a single ring setup.
and choosing my rear cogs for sufficient range for most of my riding with close ratio cruising gears in the middle; both my road bike -- Ram and off road (= sandy flats, mostly) bike -- Fargo are set up like this.
standard best practice for choosing gearing
But gearing is always a compromise, even with 11 in the back, and even with a 3X11: for this last you give up friction shifting (I imagine) and mixing and matching components, not to mention low price and chain line, in case this matters to you. Perhaps the Rohloff is the least compromised system for off road and touring, all taken together, though even that compromises with cost and weight.
From what I've read, the roadies using 11 speed like it and say it shifts even better than 9 or 10. There's no difference in chain line 11 vs 9 or 10. The compromise, if there is such, comes in when you consider cost, longevity and sensitivity to misadjustment. Although I have no personal experience with anything > 9, from what I read there's no huge fall-off in longevity for 11 compared to 10. Bottom line: forgetting friction shifting (which in my opinion stops at 7) you're talking about state of the art derailleur drive trains here.
Now as for Rohloff: again, no personal experience, but from what I've read in the way of test articles, you have all the bad features of IGH -- weight, cost, gears in the middle of the range that provide no meaningful change due to internal friction losses. I might accept "Best of a bad lot" as a description, but certainly not "least compromised".
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