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Campy 7 speed cassette

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Campy 7 speed cassette

Old 06-27-14, 07:54 AM
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MidnightMaraud
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Campy 7 speed cassette

Hey folks,

I briefly searched for information on this, so I do apologize if I happened to miss a thread on it.

I recently purchased a '98 Marinoni with Campy groupset on it from the same era. The gearing is pretty aggressive with 52x39 chain rings and 12-18 cogs in the rear(I actually noticed that the cassette says made in France) I recently did my second long ride with it including some of the biggest hills in my area, and although I flew up the hills, I was pretty drained at the end of the ride. What are my options for being able to just put a different cassette on my current hub?

Thanks
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Old 06-27-14, 08:12 AM
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Don't think Campy ever made a 7s cassette, so you should have a 7s freewheel, and lots of options available in those.

Edit: it appears from below that they did make a 7s cassette, but:
(I actually noticed that the cassette says made in France)
Does this follow?

Last edited by Ex Pres; 06-27-14 at 09:31 AM.
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Old 06-27-14, 08:16 AM
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decent
https://www.bikeforums.net/bicycle-me...-cassette.html
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Old 06-27-14, 08:50 AM
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With any luck you can swap out individual cogs to create the ratio progression you want. You are probably limited to 26T, maybe 28, but that will make a world of difference. Unless you actually use that 52/12 top gear, consider something like 13-24 or 14-26.
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Old 06-27-14, 10:50 PM
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Pardon my ignorance, but up until a few minutes ago I didn't know the distinction between a cassette and a freewheel, and unless there is an easy way to tell which one it is by visual inspection, I won't find out until Sunday when I bring it to my trusty bike mechanic friend.
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Old 06-27-14, 11:09 PM
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If you post a photo of your rear hub we should be able to tell. I'm surprised though that a bike as recent as '98 wouldn't have at least an 8 speed cassette.
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Old 06-27-14, 11:18 PM
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Originally Posted by MidnightMaraud View Post
Hey folks,

I briefly searched for information on this, so I do apologize if I happened to miss a thread on it. What are my options for being able to just put a different cassette on my current hub?

Thanks
I have a Campy 7-speed freehub. They were made in tiny quantities; the 8 speed versions were far more common. I am not aware of any French-made cogsets ever made for these.

I would place 20:1 odds that you have a freewheel.

A Shimano TZ-21 7-speed freewheel costing $15 new will shift better than any vintage freewheel no matter what the cost.

Replace your chain. Add another $15 or less for a new Shimano IG51. The combo will shift like butter.
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Old 06-28-14, 08:57 AM
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Thanks for the advice on the freewheel and chain combo. Heres a picture of what I've got. If its worth anything, when I coast, it is eerily quiet...
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Old 06-28-14, 09:31 AM
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Looks like a freewheel. Any 7s will work.
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Old 06-28-14, 11:27 AM
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From what I understand though, Campy hubs have different spacing than other hubs and won't work with all cassettes....
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Old 06-28-14, 02:48 PM
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Originally Posted by MidnightMaraud View Post
Thanks for the advice on the freewheel and chain combo. Heres a picture of what I've got. If its worth anything, when I coast, it is eerily quiet...
The picture does not include enough of the hub to allow identification. However, the unique arrow-shaped ends of the cogs indicate that you have Sachs freewheel. Good news - this means my original recommendation of a 7-speed freewheel replacement still stands. The Shimano TZ-21 or HG37 freewheels have a knee-friendly 14-28 range. Unless you are racing with a bunch of young hammerheads, you don't need a 12 or 13 tooth cog.

The chain looks like a pre-historic Sedis model. Trust me, any current generation Shimano chain will be a vast improvement. Make sure you get a 7/8 speed version. The 9-speed chain that the your LBS will carelessly shove you out the door with will shift far worse and cost twice as much as the correct one. A 10-speed chain will cost double again, and likely jam up somewhere in your drivetrain.

BTW: 7-speed freewheels all have a 5.0mm cog center to center spacing. So my freewheel recommendations with work with all shifters.

The freewheel replacement operation is a 5-minute job. Any shop should have one of the freewheels I've indicated - they are the most common replacement item in the bike universe. And make sure you take your old Sachs with you. Some vintage bike collectors folks will pay money for these. No point for your LBS guys to sell it for beer money on Ebay when you can.
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Old 06-28-14, 04:05 PM
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You sure are giving me hope....but will the Shimano thread onto a Camby hub properly?
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Old 06-28-14, 04:25 PM
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Originally Posted by MidnightMaraud View Post


You sure are giving me hope....but will the Shimano thread onto a Camby hub properly?
Yes, unless the hub is Italian threaded - but more than likely it will be standard. You can tell once you pull the freewheel and look for any markings to indicate the threading.

But I'm guessing you'll be good to go.
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Old 06-28-14, 06:00 PM
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That looks like an Athena hub. Were they still making those in the freewheel variant in '98?
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Old 06-28-14, 08:02 PM
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Originally Posted by justin10054 View Post
That looks like an Athena hub. Were they still making those in the freewheel variant in '98?
No. My guess that everything on this bike dates from more like 1988.

And you can install a standard-issue English threaded freewheel on an Italian threaded hub. I have done this on dozens of different wheelsets for 40 years. No problems.

But not a French threaded hub. There is about a one in a million chance that the OP has one of these.
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Old 06-28-14, 08:42 PM
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Originally Posted by Dave Mayer View Post
No. My guess that everything on this bike dates from more like 1988.
That would make a lot more sense. I have a similar vintage (and nearly identical) Triomphe hub with English threads and an Italian freewheel. I haven't noticed any problems.
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Old 06-28-14, 09:50 PM
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By 1998 Campy was making 9 speed drivetrains, so it makes much more sense that the bike is an 1988. Campy did have 7 speed cassettes for Athena starting around 1991 (around the same time Record and Chorus had 8 speed cassettes). As far as spacing goes, as said, the 5.0mm was the industry standard for 7 speed; it was not until 8 speed that Campy and Shimano diverged. What that means is regardless whether you are using friction or Syncro, most 7 speed freewheels will work; and yes Italian and BSC threading is close enough to be interchangeable, as long as you don't continually switch between different thread freewheels, which could eventually munch the hub.
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Old 06-28-14, 10:58 PM
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Thanks for all this help, folks.

As far as my bike goes, it has been a bit of a mystery since I've purchased it, but I sent in the serial number to Marinoni and they say that the frameset is from 98 and was sold to a LBS. My guess is that the original owner purchased the frame set and just swapped over his older groupset onto the frame...

My guess was that it's Athena...here are some more photos
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Old 06-28-14, 11:09 PM
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How could have I forgotten about the seatpost?
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Old 06-29-14, 06:34 AM
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Yeah, that looks like Athena. I'll bet that's a really fun bike to ride.
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Old 06-29-14, 08:43 AM
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Originally Posted by justin10054 View Post
Yeah, that looks like Athena. I'll bet that's a really fun bike to ride.
It is a blast. Climbing hills though, not so much.
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Old 06-29-14, 10:08 AM
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Originally Posted by MidnightMaraud View Post
It is a blast. Climbing hills though, not so much.
Then you'll probably like the Shimano 14-28 7-speed freewheel. I have it on my Fuji and the gearing is very pleasant. The crankset I'm using is 52-42, which is probably close to what you're using.
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Old 06-29-14, 10:11 AM
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Ya, I've got 52/39 in the front. According to some of the folks in the fixed gear community I will get bike aids mixing Italian components with eastern stuff.....good thing I just installed a Nitto stem.
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Old 06-29-14, 10:36 AM
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Well, in that case,

This one will give you aids

This one won't

and as much as I hate to admit it (I have a Regina and love it), the Shimano will shift way better.
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Old 06-29-14, 10:39 AM
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Yeah, not too worried about the "bike aids". If I can get a product that works fine, if not better than the NOS, I will definitely go for that.
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