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In article
<[email hidden]>, Russell
Seaton said:bigsky <[email hidden]> wrote in message news:<N4-
[email hidden]>...
Quoted message said:I am interested in getting a compact crankset for my bike
upgrade project.
Exactly what are you upgrading? It seems your intent is to
change the gearing on your bike. Does a double 110mm bcd
crank give you a different gear range? It will most likely
give you a different shift pattern. Maybe, most likely, for
the worse. My preferred gears, 42x15 to 42x19, do not work
well with a double 110mm bcd crank. The low end of this
range falls at the upper end of the small chainring/small
cogs and the lower end of the big chainring/big cogs. Or
all on the very low end of the big chainring.
_ You could get those gears with a 36 small ring.
36x13 - 36x16.
You wouldn't get as fine steps though if you have a 15-16-17-18-
19 somewhere in your cluster. Getting a compact crank does
not mean getting a 50/34.
Quoted message said:
Maybe a 110mm bcd double crank works for special event once
a year rides, but its shift pattern would not be acceptable
for me on 99.9% of my miles.
_ It works really well for me on 99.9% of my miles. There
is a gap, but with careful choice of cluster you can put
the gap at speed you don't use. If you live somewhere with
long hills, it allows a very rational set of gears. I think
if you're happy with a regular double it doesn't make much
sense. It's really an alternative to a road triple. It
works best with at least 9 gears in the back, but a 110mm
double with 9 or 10 speed clusters can easily cover the
same range as many triple ring setups with a lot less
hassle and expense.
Quoted message said:
Seems to me lots of people are taken in by the newest fads.
Whether they be in bicycles, vehicles, clothes, music,
diets, etc. Advertise it and they will buy it.
_ It's not a new fad, in many ways it duplicates the setup
that you'd get with a Cyclotourist half-step triple and a 5
speed freewheel. IMHO it's a return to rationality. The fad
IMHO is a 53x12. Besides, you can always return to a 42/53
if you want. Having a compact double allows you to easily
and relatively cheaply vary your gearing in a way that's
just not possible with standard road doubles. You can get
any even size you want from 34 to 56 in 110 bcd very easily
and cheaply. Odd sizes are available, but tend to cost more.
_ Booker C. Bense
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