campy record 10 speed

I'm thinking of trying the mt. washington hill climb next year but
will need much lower gearing if i want to make it to the top.

I currently have the standard campy record 10 speed set up.

I found a campy 13-29 cassette and would like to use a compact drive
with a 50/34 up front.

(50-34)+(29-13)=32 tooth spread for the proposed set up
(53-39)+(25-12)=27 tooth spread for the current set up.

I looked at the campy specs and they don't seem to discuss the range
of their derailleurs. I checked on the shimano site and they show a
29T max difference and a max 27T rear sprocket for their dura-ace
2800/10 speed derailleur.

any thought on where i could find the "range" of the medium campy 10
derailleur?

Originally I was going to try my MTB cranks ( cannondale integrated
BB) on the road bike, but have since found out there is not enough
room for a triple on the integrated BB. So that idea is out.

a previous recommendation by Peter was to get a shimano compatible
wheel and put a 9 speed MTB cassette with a 34 and get a shimano
derailleur to go with it. I will go this way if I can't use the
compact drive setup.

many thanks

charlie

It is pretty steep. I don't know your fitness, but almost everyone goes up
with at least a 1:1 ratio. Your average speed will be between 3.5mph and
8mph(pro average speed). Use this calculator to find out what your RPM and
gearing should be.
http://www.panix.com/~jbarrm/cycal/cycal.30f.html

Here is the topo of Mt. Washington.
http://www.topozone.com/map.asp?z=19...83&layer=DRG25

You might want to get a shimano wheel and a mountain bike cassette and rear
der. Reroute the der cable like this:
http://www.hubbub.com/ergoleverswshim9.htm
I didn't even change the chain.

I also recommend something lower that a 39 in the front. My friend and I
did it with a compact 34 in the front and 34 mtb cassette in the back. I
actually was able to use three or four different gears in the back! When G.
Jeanson broke the womens record, she had a 39/34. The rest of us humans
should use a lower gear.

Eric

Hi Peter, Just a question pertaining to the original topic about
dating Campy 10-speed components. I was under the impression that
sometime between 2000-2004, that Campy switched from EXA Drive, to
Ultra Drive Components (Cranks-Cassettes) I though that it 2003 that
the Change was made? With the Change to Ultra Drive, I think all the
newer Cranks were then labled with "UD" on them?

Also, when was it that Campy switched to Differential rear brakes for
Chorus/Record Groups?
Thanks Peter, Mark D.

charlie- I currently have the standard campy record 10 speed set up.

I found a campy 13-29 cassette and would like to use a compact drive
with a 50/34 up front. BRBR

Your rear der will work fine with the compact or even the standard 53/39. We do
this all the time w/o problem.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

apoman- I was under the impression that
sometime between 2000-2004, that Campy switched from EXA Drive, to
Ultra Drive Components (Cranks-Cassettes) I though that it 2003 that
the Change was made? BRBR

Ultra Drive and differential brakes both in 2001.
The UD was just a little additional 'ramp', inside the ramps already there to
aid shifting.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Charles Beristain wrote:

any thought on where i could find the "range" of the medium campy 10
derailleur?

http://www.campagnolo.com/techinfo.php?did=m

~PB

Pete- any thought on where i could find the "range" of the medium campy 10
derailleur?

http://www.campagnolo.com/techinfo.php?did=m BRBR

But remember this is from the company, who uses very conservative numbers. Not
from bike shops that actually try these combos. As I said, a short or medium
Campagnolo rear der will work with a compact or standard cranks and the 13-29.
A double or triple front der will work also.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

On 20 Sep 2004 13:02:42 GMT, (Qui si parla
Campagnolo ) wrote:

http://www.campagnolo.com/techinfo.php?did=m BRBR

I searched that tech section prior to asking the question here.. I
couldn't find the range for any of the rear derailleurs on the campy
site.

if you know where it is, can you let me know?

charlie


ps.. i ordered the chorus 13-29 and the compact 34/50 rings
... and waiting to get confirmation on the compact spider from
cannondale.

Charles Beristain wrote:

I'm thinking of trying the mt. washington hill climb next year but
will need much lower gearing if i want to make it to the top.

I currently have the standard campy record 10 speed set up.

I found a campy 13-29 cassette and would like to use a compact drive
with a 50/34 up front.


Charlie,

I know you're a strong rider, but I would heed the others' advice and
question whether or not a 34-29 combo is low enough for Mt. Washington.
Besides the elevation, you need to factor in the good possiblity of 40
mph headwinds.

I'm not sure I understand why you can't just use your mtb cranks and BB
(is the integrated BB not compatable with your road frame?)

Anyway, my son did Mt. W last month. He has the same Campy ratios as
you (but Centaur) and all we did was swap out the road cranks/BB with
his mtb cranks and Shimano BB. We used only the 22T chainring, took off
the front derailleur, and fitted a Wipperman 10 speed chain. Easy swap
and we didn't have to mess around with the rear derailleur. It looked
funny, but shifted fine.

I assume you also checked out the hillclimb forum for more on this
topic? http://www.tinmtn.org/hillclimb/forum/list.cfm?

Cheers,
John (in Simsbury)

Charles Beristain writes:

On 20 Sep 2004 13:02:42 GMT, (Qui si parla
Campagnolo ) wrote:

http://www.campagnolo.com/techinfo.php?did=m BRBR

I searched that tech section prior to asking the question here.. I
couldn't find the range for any of the rear derailleurs on the campy
site.

The range for most campy long-cage derailleurs is 36T. I saw it in
the small parts catalogue, i believe.

This is kind of a meaningless number, however. The more important
number is the maximum cog in the back that can be accomodated. In
other words, how long is the cage, and how far away from the axle is
the lower pivot bolt ?? Campy specs 29T, but maybe 30T or 31T is
possible since these are conservative specs.

There are many bikes in existence that cannot shift all the gears.
The small - small and large-large gear are typically useless gears as
they cause excessive chain wear and for the small-small, maybe even
rubbing on the large ring. If you are willing to avoid these gears,
you can get an extremely wide range 28-speed or maybe 26-speed using
C10 components.

You can probably put a 30T in the front and adjust your chain length
to work with an inexpensive centaur or veloce long-cage derailleur and
get up that mountain, i'm sure.

- Don Gillies
San Diego, CA