On 08/29/2014 06:57 PM, Michael Hechmer wrote:
I run 9 speed. My Saluki & Trek have triples (48/34/26 or 24) and I
run a 12-27 cassette and that clearly gives me a better low and more
closely spaced gear choices. Why 9 spd? Basically I skipped 8. I
was running 7 speed freewheels well into the time 9 speed cassette
were standard. Around 2000 it was getting hard to find decent
freewheels (its actually easier now) so I made the jump to 9 speed
cassette hubs. I like a 4-1 big gear (52/13; 48/12; 44/11) because
it gives me some extra jump in rolling terrain both to get up to speed
on the downhill and to maintain momentum on the uphills. I like the 9
spd with a 12 cog because I can use a 48 ring and get to smaller gears
when needed. The 12/27 seems right for me although the 14 to16 is a
wee bit more than I like.
The Shimano 12-27 has single tooth jumps from 12 to 15, 2 tooth jumps
17 19 21, then 3 tooth jumps 24 and 27. What happened to your 15?
.
With gearing, everything is a trade off - top & bottom; gear spacing,
shifting pattern. There not only is no one right answer, there isn't
even one perfect answer for any cyclist.
You're right. But there may be better or worse answers for any
individual cyclist and particular environment. And the difference
between the best of the answers and the worst of them can be substantial.
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