Campagnolo Sprockets

I've worn out the 19 tooth cog on my Campy Record 10-speed steel /
titanium sprocket set. The 19 - 21 pre-assembled pair is titanium.
Is it reasonable to replace just this pair of cogs, rather than spend
$200+ on a complete sprocket set? Does anyone know what the pair of
cogs should cost?

I looked at Campy documentation, and I believe the part number is
10S-91CT.

Or, could I go for the Chorus (steel) pair - part number 10S-91C?
Would this give me better longevity?

Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

Fullerton Bike Rider (Colin Campbell) wrote:
Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

Weight Weenies indicates that a Chorus 10spd cassette should be
somewhere around 220 g, while your Record cassette has a mass around 140 g.

So I ask you, is 80 g, or roughly 80 mL of water in your bottle (or your
body) a "huge weight increase"?
--
Paul M. Hobson
..:change the f to ph to reply:.

On Mar 25, 1:05*am, "Fullerton Bike Rider (Colin Campbell)"
wrote:
I've worn out the 19 tooth cog on my Campy Record 10-speed steel /
titanium sprocket set. *The 19 - 21 pre-assembled pair is titanium.
Is it reasonable to replace just this pair of cogs, rather than spend
$200+ on a complete sprocket set? *Does anyone know what the pair of
cogs should cost?

I looked at Campy documentation, and I believe the part number is
10S-91CT.

Or, could I go for the Chorus (steel) pair - part number 10S-91C?
Would this give me better longevity?

Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

To replace that 19-21 cluster in steel Chorus will cost you $56 from
QBP. The titanium 19-21 Record cluster will cost you $166.

http://harriscyclery.net/page.cfm?Pa...id=3732&type=T

http://harriscyclery.net/page.cfm?Pa...ils&sku=FW7618

http://harriscyclery.net/page.cfm?Pa...ils&sku=FW9712

On 2009-03-25 07:05:12 +0100, "Fullerton Bike Rider (Colin Campbell)"
said:

I've worn out the 19 tooth cog on my Campy Record 10-speed steel /
titanium sprocket set. The 19 - 21 pre-assembled pair is titanium.
Is it reasonable to replace just this pair of cogs, rather than spend
$200+ on a complete sprocket set? Does anyone know what the pair of
cogs should cost?

I looked at Campy documentation, and I believe the part number is
10S-91CT.

Or, could I go for the Chorus (steel) pair - part number 10S-91C?
Would this give me better longevity?

way better. The only difference between Record and Chorus casettes are
the use of titanium spockets.

Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

i would (actually i do), my next cassette will be Centuar due the the
even lower cost. Chorus and Centaur spcocket are identical, only the
fitting and a tiny weight difference differs.

--
mvh. Morten Reippuert Knudsen

"Besides, if you can't get a decent kernal panic
or two in a month, what's the point of living?"

On Mar 25, 12:08*pm, Morten Reippuert Knudsen
wrote:

i would (actually i do), my next cassette will be Centuar due the the
even lower cost. Chorus and Centaur spcocket are identical, only the
fitting and a tiny weight difference differs.

2009 Centaur cassettes are the same as older Veloce. All single cogs,
no carriers. 2009 Veloce is old Mirage - galvanized, not whatever-
plated.

"Hank Wirtz" wrote in message
...
On Mar 25, 12:08 pm, Morten Reippuert Knudsen
wrote:

i would (actually i do), my next cassette will be Centuar due the the
even lower cost. Chorus and Centaur spcocket are identical, only the
fitting and a tiny weight difference differs.

2009 Centaur cassettes are the same as older Veloce. All single cogs,
no carriers. 2009 Veloce is old Mirage - galvanized, not whatever-
plated.

Veloce now has the Centaur spacers?

On Mar 25, 7:33*pm, "Sandy" wrote:
"Hank Wirtz" wrote in message

...

On Mar 25, 12:08 pm, Morten Reippuert Knudsen
wrote:

i would (actually i do), my next cassette will be Centuar due the the
even lower cost. Chorus and Centaur spcocket are identical, only the
fitting and a tiny weight difference differs.

2009 Centaur cassettes are the same as older Veloce. All single cogs,
no carriers. 2009 Veloce is old Mirage - galvanized, not whatever-
plated.

Veloce now has the Centaur spacers?

If I understand your question, then no. Other way 'round.

On Mar 24, 11:45 pm, "Paul M. Hobson" wrote:
Fullerton Bike Rider (Colin Campbell) wrote:

Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

Weight Weenies indicates that a Chorus 10spd cassette should be
somewhere around 220 g, while your Record cassette has a mass around 140 g.

So I ask you, is 80 g, or roughly 80 mL of water in your bottle (or your
body) a "huge weight increase"?
--
Paul M. Hobson
.:change the f to ph to reply:.

Just an attempt at humor, Paul. I switched from Vittoria Rubino (310
g) to Rubino Pro (230 g) tires, which is supposed to save me 80 g per
tire, so I guess I can afford the heavier cogs, especially at the
$100+ savings mentioned below!

Interesting that the Chorus part weighs about 50% more than the Record.

On 2009-03-26 02:33:01 +0100, Hank Wirtz said:

On Mar 25, 12:08*pm, Morten Reippuert Knudsen
wrote:

i would (actually i do), my next cassette will be Centuar due the the
even lower cost. Chorus and Centaur spcocket are identical, only the
fitting and a tiny weight difference differs.

2009 Centaur cassettes are the same as older Veloce. All single cogs,
no carriers. 2009 Veloce is old Mirage - galvanized, not whatever-
plated.

i hadn't really looked at Campys 2009 stuff but it seems that appart
from 11 speed:

Super Record 09 = Record 07/08 (just added some fany ceramice bearings)
Record 09 = Chorus 07/08 (no titanium hardware in ergos, brake calipers
and deralliur)
Chorus 09 = Centaur 07/08 (no bb i brake calipars, no bb in ergopower
etc, less use of lightweight aluminum small parts)
Centaur 09= Veloche 07/08 (cheap deralliur body etc, cheaper alloys
used in pedalarms, cogs and chainwheels)
Veloche 09 = Mirage 07/08
Mirage 09 is gone...

however the price went up.

--
mvh. Morten Reippuert Knudsen

"Besides, if you can't get a decent kernal panic
or two in a month, what's the point of living?"

On Mar 25, 12:05*am, "Fullerton Bike Rider (Colin Campbell)"
wrote:
I've worn out the 19 tooth cog on my Campy Record 10-speed steel /
titanium sprocket set. *The 19 - 21 pre-assembled pair is titanium.
Is it reasonable to replace just this pair of cogs, rather than spend
$200+ on a complete sprocket set? *Does anyone know what the pair of
cogs should cost?

I looked at Campy documentation, and I believe the part number is
10S-91CT.

Or, could I go for the Chorus (steel) pair - part number 10S-91C?
Would this give me better longevity?

Should I just buy an entire new Chorus sprocket set, and suffer the
huge weight increase?

Not huge, get a Veloce 10s cogset. It is a consumable after all and
the 'huge weight savings is about 40 grams..on your 88,000 or so gram
rider and bike package.