Anyone on A.B's oval and Etap?

Discuss light weight issues concerning road bikes & parts.
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wheelsONfire
Posts: 2779
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Haven't seen many reports of successfully tuning Etap FD in conjunction with oval chainrings.

If you are one of those with oval, how is shifting?

https://absoluteblack.cc/premium-oval-r ... chainring/
Bikes:

Ax Lightness Vial EVO Race (2018.12.21)
viewtopic.php?f=10&t=156137
Paduano Racing Fidia (kind of shelved)
Open *UP* (2016.04.14)


Ex bike; Vial EVO D

TobinHatesYou
Posts: 3795
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Oval rings and eTap really don’t mix all that well. Some FD hangers seem to allow for adequate shifting quality, yet others will cause nothing but frustration. I know Nef eventually went back to Shimano and I just decided to stay on round rings until I convert to 1x.

What’s worse is that AB chainrings don’t have anti-drop pins, so if you throw your chain over the big ring, you might have a very bad day.

by Weenie


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VTR1000SP2
Posts: 702
Joined: Tue Nov 05, 2013 8:21 pm

by VTR1000SP2

I’ve had the 2x oval AB setup on 2 different bikes and while I got it shifting pretty well, occasionally I would drop a chain. Didn’t bother me but I’ve never found myself in a pickle when it drops either.

I’ve gone to oval inner only and have had the chain drop once but my chain was due for a waxing so this may be a symptom of chain condition and not the oval inner.


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tabl10s
Posts: 503
Joined: Wed Aug 23, 2017 5:40 am

by tabl10s

Dropped chain twice with Di2 until it was properly dialed in and never with eTap(both bikes have Quarbon's).
2016 Orbea Orca OMR: 15.0lbs/6.804kg...😐 | 2016 Rca: 11.07lbs/5.048kg...😭 | 2015 Pinarello F8: 13.04lbs/5.915kg...😩 | 2018 S-Works SL6: 12.04/5.625kg... 😥

RTSM
Posts: 17
Joined: Tue May 22, 2018 12:39 am

by RTSM

I'm running AB oval chainrings on my SL6 using SRAM Red eTap and in my experience if you take your time setting up the fd it shifts very good. Remember that SRAM eTap does a slight overshift to get the chain on the large chainring so use your bike stand and take your time, the setting is very sensitive but once you get it right I have found it to work well.
I'm not going back to the standard round rings.

tabl10s
Posts: 503
Joined: Wed Aug 23, 2017 5:40 am

by tabl10s

wheelsONfire wrote:
Tue Mar 19, 2019 8:42 pm
Haven't seen many reports of successfully tuning Etap FD in conjunction with oval chainrings.

If you are one of those with oval, how is shifting?

https://absoluteblack.cc/premium-oval-r ... chainring/
Dropped chain twice with Quarbon's. Once adjusted, not one incident.
2016 Orbea Orca OMR: 15.0lbs/6.804kg...😐 | 2016 Rca: 11.07lbs/5.048kg...😭 | 2015 Pinarello F8: 13.04lbs/5.915kg...😩 | 2018 S-Works SL6: 12.04/5.625kg... 😥

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wheelsONfire
Posts: 2779
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

What is Quarbon?
Bikes:

Ax Lightness Vial EVO Race (2018.12.21)
viewtopic.php?f=10&t=156137
Paduano Racing Fidia (kind of shelved)
Open *UP* (2016.04.14)


Ex bike; Vial EVO D

Bogan
Posts: 281
Joined: Tue Feb 11, 2014 11:47 pm
Location: Boganville, Australia

by Bogan

wheelsONfire wrote:
Sat May 25, 2019 10:48 am
What is Quarbon?
Rotor carbon chainrings.
MAMIL? Never. O.F.I.L. yeh! (Old F**ker in Lycra)

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wheelsONfire
Posts: 2779
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Aha, well, just peaked at Rotors web and i can't find any 5 arm chainrings anymore? Neither can i find any carbon chainrings!?
Bikes:

Ax Lightness Vial EVO Race (2018.12.21)
viewtopic.php?f=10&t=156137
Paduano Racing Fidia (kind of shelved)
Open *UP* (2016.04.14)


Ex bike; Vial EVO D

Stuartclark1977
Posts: 92
Joined: Tue Sep 13, 2011 9:45 pm

by Stuartclark1977

I have rotor q-rings on my plasma 5 with etap. As per other comments took a while to get it dialled (overshift was annoying to start dumping the chain over the big ring). Now have the adjustment just right and it’s been fine - albeit there aren’t that a many front shifts in the TT courses
____________________________________________________________________________
Firefly FF050
Scott Plasma 5 eTap
Trek Fuel EX9

TobinHatesYou
Posts: 3795
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

wheelsONfire wrote:
Sat May 25, 2019 3:40 pm
Aha, well, just peaked at Rotors web and i can't find any 5 arm chainrings anymore? Neither can i find any carbon chainrings!?

Yep, they started phasing them out last year.

by Weenie


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