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Campagnolo 7-speed Syncro compatibility?

Old 07-06-20, 02:32 PM
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NatusEstInSuht
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Campagnolo 7-speed Syncro compatibility?

I’ve been digging around in BF and other forums but unfortunately, I have not found a definitive answer to my conundrum – can I use a plain old 5mm sprocket pitch 7-speed cassette or freehub with a 7-speed Campagnolo Athena rear derailleur and Syncro levers?

I realize I can save myself all forms of hassle by using Shimano 600, 105 or many Dura Ace down-tube SIS shifters and derailleurs but I’ve been eyeing a Campy Athena shiftset (front and rear derailleur and downtube shifters).

Why Athena? First, nostalgia. I used to have an Athena equipped Concorde Colombo years ago with an Atom freehub and Record retro-friction (Doppler?) shifters, but I'm almost certain I had a six-speed set-up. This combination worked really well and I did not miss indexed shifting. Second, gear range. Campagnolo designed the Athena derailleur so it could run a cassette or freehub with a maximum cog of 30 teeth – pretty impressive for the late 1980s! And third, aesthetics. Few shifters and derailleurs are as attractive as first-generation Athena.

There are plenty of used wheelsets with hubs for threaded 6- and 7-speed freehubs or for 7-speed Shimano Hyperglide cassettes, but I’ve found few for 7-speed Campagnolo cassettes, and 7-speed Campagnolo cassettes are near impossible to find.

I know that Campy’s 8-speed cassettes have a sprocket pitch of 5mm – identical to standard 6- and 7-speed freehubs and cassettes, including Shimano Hyperglide, but I’ve found nothing about the pitch for 7-speed Campagnolo cassettes.

https://en.wikibooks.org/wiki/Bicycl...ing_Dimensions

https://bike.bikegremlin.shiftset com/1232/bicycle-cassette-compatibility/

I believe I would be able to use a 7-speed Shimano, SRAM or SunRace cassette or standard freehub on the appropriate hubs with Athena Syncro shifters, especially if I select friction shifting. Am I right? More importantly, am I wrong? I’d appreciate any thoughts or insights people have on this.

Thank you.

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Old 07-06-20, 03:12 PM
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Campagnolo Synchro 2 had inserts to make it compatible with different freewheels/cassettes, derailleurs and makes.



Boulder Bicycle shows Synchro 2 in stock with the isserts.
Campagnolo Syncro 2 shifter set NOS boxed - with 6 different indexing inserts!

Finally, if you can get a wheel with a 7 Speed UG/HG freehub body, they are out there, you can space a Shimano cassette any way you want.

John
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Old 07-06-20, 06:44 PM
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Originally Posted by 70sSanO View Post
Campagnolo Synchro 2 had inserts to make it compatible with different freewheels/cassettes, derailleurs and makes.

Boulder Bicycle shows Synchro 2 in stock with the isserts.
Campagnolo Syncro 2 shifter set NOS boxed - with 6 different indexing inserts!

Finally, if you can get a wheel with a 7 Speed UG/HG freehub body, they are out there, you can space a Shimano cassette any way you want.

John
Thanks!

I think I'll have to assume that Athena and Chorus are interchangeable for inserts, given they both came out at the same time. The set I'm looking at has Syncro I levers, but the inserts will still be either blue or black, as per your attached Syncro II chart.

I'd prefer to get a wheelset with a cassette, but I'll make do with a freehub if needed.
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Old 07-06-20, 08:09 PM
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If you can find Shimano 600 6400 hubs with a UG/HG freehub body you will be in great shape.

I’m running 7700 hubs with an XT732 UG/HG to stay at 126mm.

If you are inclined to spread the rear dropouts to 130mm things open up.

If you go to a freewheel, Sachs Aris are great. I have been fortunate to have a couple 7 speed and they go to 32t. Not cheap and off eBay, but they are pretty bombproof. They index with Shimano and I would guess Campagnolo. FWIW, their 8 speed freewheels are spaced the same at 5.0mm and all you need to do is unscrew the 1st position cog.

John
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Old 07-06-20, 10:02 PM
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Originally Posted by 70sSanO View Post
If you can find Shimano 600 6400 hubs with a UG/HG freehub body you will be in great shape.

Iím running 7700 hubs with an XT732 UG/HG to stay at 126mm.

If you are inclined to spread the rear dropouts to 130mm things open up.

If you go to a freewheel, Sachs Aris are great. I have been fortunate to have a couple 7 speed and they go to 32t. Not cheap and off eBay, but they are pretty bombproof. They index with Shimano and I would guess Campagnolo. FWIW, their 8 speed freewheels are spaced the same at 5.0mm and all you need to do is unscrew the 1st position cog.

John
Thanks John!

A Shimano 6400 or 1055 wheelset were what popped into my mind. They're reliable, work great, easy to find, simple to service and are compatible with plenty of cassettes. I also have a very nice 1055 / SC wheelset at my disposal.

I really don't wish to spend too much money and I think I can get the Athena shifters along with both derailleurs for under $100 USD.
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Old 07-06-20, 11:03 PM
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Yes. A 1055 has a 7 speed freehub body and will work just fine. If you look at the freehub body it will be threaded on the outside and inside; and have one cassette slot that is wider.

John
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