SRAM AXS Etap derailleurs with Campy Drivetrain?

Discuss light weight issues concerning road bikes & parts.

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joeyb1000
Posts: 321
Joined: Thu Mar 03, 2016 8:37 pm

by joeyb1000

For those of you who have experimented with compatibility issues, I'm wondering if there are any issues with what I plan on building on one of my bikes. The Campy and AXS cassettes have virtually identical spacing. My only real concern is that SRAM specifies a 50t max chainring and a 13t jump in the crankset. Also, has anyone tested the SRAM AXS Powerlink on a Campy 12s chain?

Build:
1) Etap AXS derailleurs and SRAM brakes
2) Campagnolo 12s 11-32 Cassette , chain and 52/36 crankset

by Weenie


DaveS
Posts: 3046
Joined: Fri Mar 24, 2006 1:26 pm

by DaveS

The best quick link for a Campy chain is the SRAM eagle 12. The AXS absolutely will not work - it's too narrow between the plates. The AXS chain however, seems to work fine with my Campy chorus 12 crank and cassette.

The problem with the 52/36 crank is you may not be able to get the FD high enough. It requires about 4mm of FD rise for 2T. SRAM had to change the FD mounting height, or few bikes would work with a 46/33. My Colnago C-RS barely works with a Campy 48/32 crank and chorus FD.

Some users report success with a 16 tooth difference at the crank, but you don't see SRAM offering it.

Consider a Campy 48/32 with a SRAM 10-28.
Last edited by DaveS on Thu Aug 20, 2020 2:16 pm, edited 1 time in total.

joeyb1000
Posts: 321
Joined: Thu Mar 03, 2016 8:37 pm

by joeyb1000

Thanks for the info regarding the chain link.

It's a clamp on FD, so I don't think I have an issue with the height. This is for a travel bike (S&S Couplers). That's why I want ETAP.

DaveS
Posts: 3046
Joined: Fri Mar 24, 2006 1:26 pm

by DaveS

The clamp on FD takes care of any height issue. I also read something interesting about setting chain length. The implication was that using the big/big plus 1 inch method left the chain too long, but that makes no sense unless the computer software does not allow the big/big shift to occur. If a 4 tooth shift is avoided, the chain could be 1 inch shorter. I found a SRAM AXS chain installation video and found that they advise the standard big/big plus1 inch method. Makes sense to me.
Last edited by DaveS on Thu Jul 02, 2020 10:35 pm, edited 1 time in total.

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MayhemSWE
Posts: 582
Joined: Thu Mar 12, 2015 12:44 pm
Location: Stockholm, Sweden

by MayhemSWE

Why risk compatibility issues instead of investing in the full system? I don't get it…

by Weenie


joeyb1000
Posts: 321
Joined: Thu Mar 03, 2016 8:37 pm

by joeyb1000

MayhemSWE wrote:
Thu Jul 02, 2020 5:21 pm
Why risk compatibility issues instead of investing in the full system? I don't get it…
Because everything else I have is Campy 12s.

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