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Old 08-18-07, 07:47 PM   #1
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Campy expertise needed!

I'm in a project to upgrade my '85 or so nice Italian road racing bike to modern Campy 10 speed. I have a C-record 53/39 crankset and an Italian BB. How well will the C-record chainwheels and a C-record front derailleur work with Ergolevers and a 10-speed chain? Do I need a modern Campy 10 speed crankset?

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Old 08-18-07, 11:16 PM   #2
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It will work just fine. You would want to change out the large chain ring to a 10 speed one where it mounts closer to the 39t ring. The chain ring is all you really need. It has a 4mm offset. Eventually you should replace your FD with a narrower one but it is not essential. I have a C-Record setup and I use a 10spd FD on the the 8 spd chain and crankset. I just have to adjust it a little more frequently. The RD is another matter. After early 2001 the parallelogram changed and I don't think the 10spd will work very well with the C-Record RD (but I have to say I haven't tried it).
Contact me by PM I may have a perfectly good 53 chainring (10spd) that I would be willing to part with.
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Old 08-19-07, 05:11 AM   #3
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Just curious. Weren't chains in those days (and chainrings) much wider (thicker)? Will a 10s chain really fit over the teeth of the old chainrings?
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Old 08-19-07, 08:45 AM   #4
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Further to this, here is something from the Campa FAQs on their Web site:

"Does the C9 chain work with the 10s drivetrain?

Absolutely not. It is too wide
."

This implies to me that the OP may have a problem with his project.
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Old 08-19-07, 08:48 AM   #5
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Quote:
Originally Posted by gmason View Post
Just curious. Weren't chains in those days (and chainrings) much wider (thicker)? Will a 10s chain really fit over the teeth of the old chainrings?
8-speed and older chains were wider because the sideplates were thicker and the pins longer. The gap inside of the plates has remained the same and a 9 or 10-speed chain will fit over the teeth of older chainrings.
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Old 08-19-07, 08:49 AM   #6
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Quote:
Originally Posted by gmason View Post
Further to this, here is something from the Campa FAQs on their Web site:

"Does the C9 chain work with the 10s drivetrain?

Absolutely not. It is too wide
."

This implies to me that the OP may have a problem with his project.
The chain will fit over the teeth on the chainring, it's the spacing between the teeth of the cogs where the chain won't fit. Because there is tension on the chain at all times, they never made chainrings wide enough to fill all the space in an 8 speed chain.
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Old 08-19-07, 08:52 AM   #7
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Quote:
Originally Posted by gmason View Post
Further to this, here is something from the Campa FAQs on their Web site:

"Does the C9 chain work with the 10s drivetrain?

Absolutely not. It is too wide
."

This implies to me that the OP may have a problem with his project.
I believe this warning refers to the rear cassette spacing and isn't a problem with the chainring spacing.
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Old 08-19-07, 08:58 AM   #8
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While I am learning from this thread ...

Does this mean that if I get desperate on my 10s, and find an 8s chainring that fits the bill, I am OK except for the shifting ramps, etc.? If so, I assume a 9s chainring would also work on a 10s.
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Old 08-19-07, 11:36 AM   #9
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Quote:
Originally Posted by gmason View Post
Further to this, here is something from the Campa FAQs on their Web site:

"Does the C9 chain work with the 10s drivetrain?

Absolutely not. It is too wide
."

This implies to me that the OP may have a problem with his project.
The place where a 10 spd drive train REQUIRES a 10 spd chain is the RD cage it is thinner. The only difference on the chainring is the offset of 4mm allowing the chainrings to be closer. The smaller chain ring 39T is exactly the same on a 8,9, or 10 speed setup. Any thing other than the proper parts will give a little less than the perfect campy shifting but will work as well as most other groups on the market.
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Old 08-19-07, 11:41 AM   #10
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You can run the 10s CHAIN on any chainrings, Shimano, Suntour, Campy, whatever. It will work. A narrow chain is not so narrow that it wont go over the teeth.

The difference in all of these things is the spacing on the rear cassette. In order to fit more cogs on they kept narrowing the spacing. That is where the narrow chains come in. And with the varying spacing you end up with different shifting systems. The brifter and derailleur have to work together and shift precisely the distance between the rear cogs, and the chain has to fit between those cogs.

Everything else will work to some degree.

I've run 9s and 10s Shimano cassettes with Campy 10s setup. I've run a 9s Shimano chain, 9s Shimano rear cassette, with an old Campy NR friction shift setup. It all works to a degree. The 10s campy spacing meant that I lost one gear on the Shimano cassette, where it would not quite go in.

(Deanster is saying the same thing and beat me to the post button)
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Old 08-19-07, 01:22 PM   #11
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Thanks, all, for the help. I'm looking into getting a modern big chainring, and I already have Veloce 10 sp Ergos, a 10 sp Veloce long-cage RD, and I'll be getting a 13-29 cluster when time comes to put it all together. Ditto the chain.

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