Sram red hidden bolt crankset (Quarq) and S-Works aero chainrings compatibility

Triathlon Forum
1

Hi ST,

I would like to know if anyone has ever tried to swap the Sram Red (hidden bolt configuration) chainring for the S-Works aero chainrings?
Thing is I have currently a set of S-Works chainrings that came with my bike but I’d like to swap them with the current Sram red ones on my Quarq.

Any recommendation before do it/ not doing it ?

Thanks
David

2

Hi ST,

I would like to know if anyone has ever tried to swap the Sram Red (hidden bolt configuration) chainring for the S-Works aero chainrings?
Thing is I have currently a set of S-Works chainrings that came with my bike but I’d like to swap them with the current Sram red ones on my Quarq.

Any recommendation before do it/ not doing it ?

Thanks
David

Bump!

Also would it be still ok if the anti-jam pin (from the S-Works chainring) is no more aligned with crank arm since the chainring has to be slighly rotated to fit the Hidden bolt patern ?

3

Bump! Anybody?

5 Likes
4

If you do it, I think you would want to install the rings so that the pin is 180 degrees from where it normally is…that way the shift ramps/pins will be properly aligned.

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ok ! thanks for the reply !

Is there a place where I can find instruction for the hidden bolt chainrings installation/changing ?

Thanks !
David

3 Likes
6

Hmm, SRAM doesn’t appear to have anything. You do need to use a torque wrench on the bolts. If you cant get to the hidden bolt, you can unbolt the spider from the crank arm…3 torx bolts.

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7

Tried to find something on my side but nothing about that. Strange that sram has nothing…
Got the torque wrench (0 nm - 24 nm) so no problem here.
I can unscrew one side of the hidden bolt but can’t access the other side. if I unbolt de spider from the crank arm, will I need a new factory calibration ? I read the Omnical feature was for the chainrings bolts but will the offset be affected I do so?

It seems like an interesting project but I rather play it safe and still get my power working rather than having an aero s-works ring ;). But if it’s safe why not ?

Thanks for answering my new-to-chainrings-swap questions !

1 Like
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Everything I’ve seen indicates that removing the spider will not affect the slope calibration. You can call Quarq to confirm, they are very helpful over the phone.