[DVBC] compact crank questions

[Drew Knox]

Hey Eric,

What Frank says is generally true *but* I'm happily running a Campy Chorus
10-speed with a small-cage rear derailleur, a 26-tooth freewheel and an
FSA 50-34 compact crank. I thought I would at least need to swap up to a
middle-length cage (point your browser to Branford Bikes
http://www.branfordbike.com/cgi-bin/perlshop/perlshop.cgi?ACTION=push&thispage=hub/hub07.html&ORDER_ID=182446585
to
read how to swap Campy cages) but Luke kept insisting the small cage would
work. However, the regular Campy front der shifted erratically going down
onto the small chainring. It felt like the chain was being dropped instead
of pushed and would frequently derail. When the Campy compact front der
arrived, it shifted smoothly and consistently.

If you feel like you could use two or three easier gears in the hills, the
compact is a great way to go. I found the easier gears helped my knees and
were less tiring than muscling. I also found buying compacts easier than
losing 10 lbs.

Drew


On 3/4/07, Frank Jackson <cyclingfrankrides at hotmail.com> wrote:
>
> Eric
> 1) It sounds like you may have a front derailleur with a 14 tooth throw
> (53-39 =14). Since the compact will probably be 34/50 you may need to change
> the front derailleur since it probably will not handle a 16 tooth throw
> (50-34=16).
> 2) The rear derailleur size has to do with the amount of chain slack it
> handles. If you have a short derailleur now and will be going to a larger
> cassette range then you will need one with a longer arm to handle the extra
> chain spread.
>
> Also if you go with the compact and do not change the current cassette
> then expect to remove a few chain links. Well at least that is how I see it
> from the information provided.
>
> Comments from the List Serve???
> Frank
>
>
>
>
> ------------------------------
>
> > Date: Sun, 4 Mar 2007 16:21:04 -0500
> > From: zwicky2 at comcast.net
> > To: dvbc-list at dvbc.org
> > Subject: [DVBC] compact crank questions
> >
> > hey all,
> >
> > in light of the recent thread on compact cranks, i would like to ask a
> > few questions of anybody in the group who might be able to answer.
> >
> > i am thinking about changing my current campy 10-speed road double
> > (53-39) for a compact crank, for all the reasons noted in the thread.
> >
> > 1) will i have to change my front derailleur? the whole setup is campy
> > chorus and record 10-speed from a few years back.
> >
> > 2) what is the widest-range rear cassette that will work with a
> > short-cage chorus or record derailleur?
> >
> >
> > thanks in advance,
> >
> > -eric
> >
> > _______________________________________________
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> > DVBC at list.dvbc.org
> > http://list.dvbc.org/mailman/listinfo/dvbc-list
>
>
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