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SRAM 22 chainrings compatible w Specialized crank?

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SRAM 22 chainrings compatible w Specialized crank?

Old 11-20-16, 11:31 AM
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SRAM 22 chainrings compatible w Specialized crank?

Am installing SRAM etap on 2013 Specialized Tarmac Pro that came with in-house brand crankset and a Dura Ace 11-speed drivetrain. Reading forums and blogs give differing opinions on the Shimano 11 chainrings and the SRAM 22 Yaw front derailleur. If I understand correctly, there is slightly wider spacing between the SRAM 22 rings in order to optimize Yaw feature.

So I'm looking at three options:
1 - install etap and see how well it works. If only chain rub is small-small or large-large extreme, then no problem
2 - change Specialized crank out for new SRAM Red 22 crankset. Expensive but guaranteed to work.
3 - see if I can find SRAM 22-optimized chainrings that fit on the Specialized crank spider (110 BCD b/c it's a 52/36).

It's this third option that I'd love feedback on. The chainring-only upgrade would cost about $300 less than a full crankset upgrade. It's just not clear to me if I can buy SRAM rings and bolt them on and be in the clear.

Anyone out there have experience with this?
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Old 11-20-16, 12:57 PM
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It all comes down to matching The Bolt circle diameter.. 5 bolt 130 bcd is quite common..







....

Last edited by fietsbob; 11-21-16 at 11:13 PM.
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Old 11-21-16, 11:00 PM
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The Sram rings w/ same BCD should go on fine.

I would try with the rings that you have- nothing to lose.
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Old 11-27-16, 10:40 AM
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Got it, thanks for advice. Will go with cheapo option first: no change. If that doesn't work well, will buy SRAM's 110 BCD rings and give them a try. Looks as though the most recent outer one they offer is designed so that it has two pins diametrically opposed, allowing it to work well with both hidden and non-hidden bolt. Kudos to SRAM for this versatility.
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