>
> I find it amazing that you wear out 11T sprockets. I have 13T sprockets
> I've been using (on 12-27 --> 13-30 9 speed conversions) that I've been
> using since 2005 that are still fine. I'm amazed your 11s get any wear
> at all, since (as already noted) 11 x anything is so high as to be
> absolutely useless on anything but a small-wheeler. You aren't spending
> a lot of time in the 11x30, are you?
>
>
>
> In Vt, there is a lot of rolling terrain. Riding on this is a lot like
> skiing mogels; it's best to be aggressive. A lot of downhill speed can
> help power one over the next roller. Even my wife, who is vertically
> challenged and has a fear of heights hasn't gotten tuned into hi speed
> downhills as the easy answer to the next up hill. That's why I describe
> the 12/48 as a launch gear. Most useful at the very top and bottom of
> hills. I spend little, but very productive time, in my 11/44 or 12/48
> gear.
>
These smaller cogs wear out faster not because we use them a lot, but
because they spin so fast each tooth gets used many more times than the the
27 does going uphill. Also, because of the tight circumference these ultra
small cogs are more sensitive to wear than larger cogs and begin to slip
with less wear than a big cog will. Even so, they outlast many chains. Still,
it' not a big deal... unless I can't get a good 9 spd cassette.
Michael
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