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campagnolo 7 speed cassette

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campagnolo 7 speed cassette

Old 07-24-07, 07:31 AM
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campagnolo 7 speed cassette

I need to replace a 7 speed campagnolo rear cassette. Does anybody know if an 8 speed cassette would fit or any other options I have? Cheers.
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Old 07-24-07, 07:41 AM
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Are you sure it's a cassette and not a freewheel? I thought Campy freehubs began w/8s, but I've been known to be wrong.
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Old 07-24-07, 07:55 AM
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vpiuva is correct.
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Old 07-25-07, 01:08 AM
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I took it apart and it has 7 spacers and 7 cogs on a splined hub (not sure if this constitutes a cassette but it is not a threaded freewheel). Any idea if I can get replacement cogs?
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Old 07-25-07, 01:44 AM
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Photos?
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Old 07-25-07, 02:49 AM
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Originally Posted by Bullet View Post
I took it apart and it has 7 spacers and 7 cogs on a splined hub (not sure if this constitutes a cassette but it is not a threaded freewheel). Any idea if I can get replacement cogs?

You are correct, it is a cassette. Campy 7 sp cassette hub body is splined exactly the same as an 8 sp. It is approx .4" shorter though. You can use the readily available 8 sp cassettes for replacements. Just loose a cog and spacer. Same lockring will work. Good luck


Tim
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Old 07-25-07, 03:00 AM
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I was wrong, I've only ever seen or heard of the 8sp cassettes
http://www.branfordbike.com/cassette/cog18.html#item9
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Old 07-25-07, 06:46 AM
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Originally Posted by cs1 View Post
It is approx .4" shorter though.

Tim
Is the width difference really that much? .4" = 10.2 mm which seems like way too much for one cog and spacer.
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Old 07-25-07, 10:10 AM
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Thanks CS1 - that is really useful information for a novice bike mechanic like me. I will have a look and see where I can get hold of an 8 speed cassette (any idea where I can buy one?).
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Old 07-25-07, 12:19 PM
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Originally Posted by Bullet View Post
Thanks CS1 - that is really useful information for a novice bike mechanic like me. I will have a look and see where I can get hold of an 8 speed cassette (any idea where I can buy one?).
I bought a NOS record one for cheap off ebay ($25?). there's probably more out there to be had.
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Old 07-25-07, 03:29 PM
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Originally Posted by HillRider View Post
Is the width difference really that much? .4" = 10.2 mm which seems like way too much for one cog and spacer.

That's an approx difference. If memory serves me, Campy 7 sp cassettes are spaced at 126mm. Campy 8, 9 and 10 are 130mm, hence about 4mm. Close enough IMO.

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Old 07-25-07, 04:16 PM
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Originally Posted by cs1 View Post
That's an approx difference. If memory serves me, Campy 7 sp cassettes are spaced at 126mm. Campy 8, 9 and 10 are 130mm, hence about 4mm. Close enough IMO.

Tim
Uh, 0.4" and 4 mm aren't quite the same.
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Old 07-25-07, 07:46 PM
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Miche do campagnolo 8 speed cogsets.... And since they still make them, the availability is better.
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Old 07-26-07, 09:38 AM
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Cheers acorn. I think I have found an 8 speed Miche cassette - lets hope it fits when (and if!) I get my hands on it. When I know I will pass on the info.. Cheers
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Old 07-26-07, 09:51 AM
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Originally Posted by HillRider View Post
Uh, 0.4" and 4 mm aren't quite the same.
lol
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