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PostPosted: Thu Sep 14, 2017 2:12 pm 
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Joined: Tue Jun 30, 2015 3:30 am
Posts: 280
seansis wrote:
Hello.
I'm looking for a new groupset to replace the old ultegra 6700.
Which one is better to buy - ultegra di2 or eTap ?

I've heard a lot of good about di 2, but I do not like their wires.
Are there any functional advantages to the eTap?

First I was a Di2 user and now a eTap user.

I love eTap for the elegance and simplicity. I couldn't miss-shift RD/FD as there's only one button per side. Paddles are bigger with more definite and assured click. Plus their hydro brake is better (the Contact Point Adjustment actually work; hoods texture and shape are more ergonomic).

I liked Di2 for the relatively long battery life (I shift a lot to maintain cadence, eTap RD battery lasted 6xx km only), and the syncho shift was actually quite good (I configured the Di2 shifting like eTap, left hand easy right hand hard, but with syncho shift the FD will shift to avoid cross chaining).

eTap is a keeper for me. You will have to judge for yourself.


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Posted: Thu Sep 14, 2017 2:12 pm 


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PostPosted: Thu Sep 14, 2017 2:55 pm 
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Joined: Sun Aug 27, 2017 3:50 pm
Posts: 40
I do like the fd auto trim of etap


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PostPosted: Thu Sep 14, 2017 3:09 pm 
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Joined: Thu Jul 19, 2012 6:09 pm
Posts: 1110
Location: Loveland, CO
Pschnei3 wrote:
I do like the fd auto trim of etap


Only Shimano has true FD auto trim. It's patented by Shimano. The FD will move and position itself to avoid chain rub depending on which rear gear you're in. Sram uses a passive system called Yaw. The FD only has two positions, small or large chainrings. But the FD cage angle changes to avoid contact with the chain. This is not the same as auto trim. Shimano also has auto trim on certain rear gears such as on the 11. The derailleur will overshift and then move to the proper position one second later. I'm not sure if eTap does this.


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PostPosted: Thu Sep 14, 2017 3:16 pm 
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Joined: Sun Aug 27, 2017 3:50 pm
Posts: 40
pdlpsher1 wrote:
Pschnei3 wrote:
I do like the fd auto trim of etap


Shimano also has auto trim on certain rear gears such as on the 11. The derailleur will overshift and then move to the proper position one second later. I'm not sure if eTap does this.


Sent from my iPhone using Tapatalk



I will have to check this next time I ride. (pretty cool shimano does this. )


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PostPosted: Thu Sep 14, 2017 4:07 pm 
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Joined: Thu Nov 03, 2016 4:32 pm
Posts: 189
Location: North Carolina, USA
pdlpsher1 wrote:
Pschnei3 wrote:
I do like the fd auto trim of etap


Only Shimano has true FD auto trim. It's patented by Shimano. The FD will move and position itself to avoid chain rub depending on which rear gear you're in. Sram uses a passive system called Yaw. The FD only has two positions, small or large chainrings. But the FD cage angle changes to avoid contact with the chain. This is not the same as auto trim. Shimano also has auto trim on certain rear gears such as on the 11. The derailleur will overshift and then move to the proper position one second later. I'm not sure if eTap does this.


Sent from my iPhone using Tapatalk



I have both eTap and Di2. The eTap does not (or I've never seen it) auto-trim the FD, but most certainly the Di2 does -- and it is really quite nice.


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PostPosted: Thu Sep 14, 2017 8:19 pm 
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Joined: Mon Jul 24, 2017 12:02 pm
Posts: 514
eTap will overshift about .5mm when actuating the FD, then reset to its resting position. Since eTap uses Yaw, it does not need trim at all. If you find that you have rub on your FD, it's probably because the whole derailleur has not been installed at the right angle.


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PostPosted: Thu Sep 14, 2017 8:25 pm 
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Joined: Sun Aug 27, 2017 3:50 pm
Posts: 40
TobinHatesYou wrote:
eTap will overshift about .5mm when actuating the FD, then reset to its resting position. Since eTap uses Yaw, it does not need trim at all. If you find that you have rub on your FD, it's probably because the whole derailleur has not been installed at the right angle.



my apologies. this is what I was thinking auto trim was on etap.


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PostPosted: Thu Sep 14, 2017 10:45 pm 
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Joined: Fri Sep 23, 2016 9:58 am
Posts: 25
jlok wrote:
First I was a Di2 user and now a eTap user.

I love eTap for the elegance and simplicity. I couldn't miss-shift RD/FD as there's only one button per side. Paddles are bigger with more definite and assured click. Plus their hydro brake is better (the Contact Point Adjustment actually work; hoods texture and shape are more ergonomic).

I liked Di2 for the relatively long battery life (I shift a lot to maintain cadence, eTap RD battery lasted 6xx km only), and the syncho shift was actually quite good (I configured the Di2 shifting like eTap, left hand easy right hand hard, but with syncho shift the FD will shift to avoid cross chaining).

eTap is a keeper for me. You will have to judge for yourself.


Thanks!

I read that the di2 has some buttons for different driving conditions. Etap does not have it. How important are these buttons?


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PostPosted: Fri Sep 15, 2017 3:12 am 
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Joined: Tue Jun 30, 2015 3:30 am
Posts: 280
For my use case I don't care the hood button, which could control Garmin Edge (e.g. changing the info page). They are nice to have, but not deal breaker for me.

Both eTap and Di2 price are now close to reasonable. I think you won't go wrong with either one, u just adapt to it. I'd say u should consider ergonomic above all. Whatever fits your hands is the best. just my 2cents.


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PostPosted: Fri Sep 15, 2017 3:15 am 
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Joined: Tue Jun 30, 2015 3:30 am
Posts: 280
Pschnei3 wrote:
I do like the fd auto trim of etap

ah... yes this is true. and the FD feels stronger than SRAM FD.

but lukily i had my etap setup by LBS, who did the job very very well and made front shifting doing quite well. I can't remember any FD cage noise on my eTap.


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PostPosted: Fri Sep 15, 2017 4:21 am 
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Joined: Fri Sep 23, 2016 9:58 am
Posts: 25
Garmin edge 810 will show chainrings and cassette when i go to the Etap?


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PostPosted: Fri Sep 15, 2017 7:07 am 
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Joined: Fri Sep 23, 2016 9:58 am
Posts: 25
I have an old power meter quarq riken 10r (10 speed)
will it work properly with Sram red eTap?


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PostPosted: Fri Sep 15, 2017 7:28 am 
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Joined: Sat Apr 18, 2009 8:59 am
Posts: 1009
Location: Surrey UK
It may have changed since I switched to Wahoo couple months ago, 810 did not support e-tap.
Answering your second question, I cannot see any reason why it wouldn't work.

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PostPosted: Fri Sep 15, 2017 12:05 pm 
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Joined: Fri Sep 23, 2016 9:58 am
Posts: 25
Thank you!

I read that there is a difference between 10 high-speed and 11 speed chainrings.
perhaps normally worked mechanical groups, but how with electronic will work, I do not know.
I have rings without technology "Yaw"
Etap initially comes with this technology.
that is the question.


Last edited by seansis on Sat Sep 16, 2017 2:28 am, edited 1 time in total.

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Posted: Fri Sep 15, 2017 12:05 pm 


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PostPosted: Sat Sep 16, 2017 1:37 am 
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Joined: Thu Jul 19, 2012 6:09 pm
Posts: 1110
Location: Loveland, CO
Why don't you just get some new 11-speed rings?

I'm on Di2 11-speed but I use 10-speed rings because they are quite a bit cheaper than 11-speed rings. It works just fine.


Sent from my iPhone using Tapatalk


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