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Chain rings shifting has 4 positions when it should have 2

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Old 09-29-20, 03:02 PM
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fadetoblack22
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Chain rings shifting has 4 positions when it should have 2

So when I shift my chain from big to small, there seems to be 4 clicks I can do with the shifter rather than 2. Is this normal? I've tried to adjust the tension and position screws on the derailleur with no luck.

Video of my issue: drive.google.com/file/d/16vxGaWAHCv6s92yVgMMi-06IW9brQ-aI/view?usp=sharing

Any suggestions?
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Old 09-29-20, 03:06 PM
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The video does not provide the model shifter you have. Many front shifters have 4 positions in order to be able to trim the front derailleur when riding cross chained
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Old 09-29-20, 03:07 PM
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It's normal. They're called trim positions. Some derailleurs have them, others don't.

You can use them when cross chaining to avoid chain rub on the front derailleur.
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Old 09-29-20, 03:17 PM
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Originally Posted by Amt0571
It's normal. They're called trim positions. Some derailleurs have them, others don't.

You can use them when cross chaining to avoid chain rub on the front derailleur.
Thanks. So I just have to be aware when I'm changing that it might take an extra click to shift?

It's the shimano sora - I forgot to say.
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Old 09-29-20, 07:01 PM
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Originally Posted by Amt0571
It's normal. They're called trim positions. Some derailleurs have them, others don't..
Technically it's in the shifter, not the derailleur.
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Old 09-29-20, 07:02 PM
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What bike?

My bike has Sora components, but the shifters are MicroShift brand. The front has 4 clicks for trimming the front derailleur.
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Old 09-29-20, 08:40 PM
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My Trek with Campy ergo brake /shifters has the trim clicks also. The rear derailleur is indexed and indexes nicely. The front derailleur is friction shifting. Takes two clicks to shift from the large chain ring to the small one and vice versa.
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Old 09-29-20, 09:23 PM
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Originally Posted by frogman
My Trek with Campy ergo brake /shifters has the trim clicks also. The rear derailleur is indexed and indexes nicely. The front derailleur is friction shifting. Takes two clicks to shift from the large chain ring to the small one and vice versa.
Campy Ergo left shifters are definitely not 'friction'.
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Old 09-29-20, 09:47 PM
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Originally Posted by cxwrench
Campy Ergo left shifters are definitely not 'friction'.
OK the front has index clicks but more than needed to get to the next chainwheel. Not like the rear derailleur. I finally dialed it in after waching the you tube video from Arts Cyclery. It is normal to have several clicks with the front derailleur.
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Old 09-29-20, 09:59 PM
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cxwrench,

Sheldon Brown does a better job of explaining the Campy Ergo front shifters than I do, technically they are not indexed shifters in the front. :

"Campagnolo Ergo shifters. These are indexed on the rear, but not in front. The Ergos are not strictly "friction" shifters, as they do "click" when you shift them, but they have many "micro clicks" permitting considerable "fine tuning" of front derailer position."
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Old 09-29-20, 11:34 PM
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Originally Posted by dedhed
Technically it's in the shifter, not the derailleur.
Yes, you're right. The need for trim positions however is dictated by the FD design. For example, with SRAM Yaw derailleurs they're not needed and you can crosschain without chain rub if properly set up.

Last edited by Amt0571; 09-29-20 at 11:41 PM.
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Old 09-29-20, 11:38 PM
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Originally Posted by fadetoblack22
Thanks. So I just have to be aware when I'm changing that it might take an extra click to shift?

It's the shimano sora - I forgot to say.
Yes, you'll get used to it. If you cross chain you'll probably have to use the trim position to avoid chain rub.
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Old 09-30-20, 02:23 AM
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Originally Posted by Mojo31
What bike?

My bike has Sora components, but the shifters are MicroShift brand. The front has 4 clicks for trimming the front derailleur.
It's the Genesis Croix de fer 10
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Old 09-30-20, 02:41 AM
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I sometimes wish my Shimano Altus triple chainring had a way to trim the front derailleur. It uses a twist grip shifter and while it allows for a trim adjustment when I make the shift sometimes I'm not comfortable when it clicks into position even after a few adjustments.

I see why some prefer a friction shifter for the front derailleur. The back 7 speed freewheel's
shifting seems pretty good once properly adjusted though.
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Old 09-30-20, 05:29 AM
  #15  
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I use Campy Ergo on my main bike and had a hard time when I rented a 105 11sp equipped bike and also once a 10sp Ultegra because I couldn't get rid of the chain rub the way I'm used to. Be happy you have trim.
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Old 09-30-20, 06:56 AM
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Originally Posted by zacster
I use Campy Ergo on my main bike and had a hard time when I rented a 105 11sp equipped bike and also once a 10sp Ultegra because I couldn't get rid of the chain rub the way I'm used to. Be happy you have trim.
What I'm wondering is: why is SRAM universally known to be unable to make a good FD when they're the only ones who can manage a FD that needs no trim and doesn't rub? Why can't Shimano and Campy do it too?

To be fair, SRAM Yaw FDs are a huge pain in the ass to set up properly, but once done, they work perfectly.
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Old 09-30-20, 08:09 AM
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Originally Posted by Amt0571
What I'm wondering is: why is SRAM universally known to be unable to make a good FD when they're the only ones who can manage a FD that needs no trim and doesn't rub? Why can't Shimano and Campy do it too?

To be fair, SRAM Yaw FDs are a huge pain in the ass to set up properly, but once done, they work perfectly.
With the Campy I have I like being able to get the front just right. To get on the big ring I shift it all the way and then back off one click and I'm good for all 10 cogs. For the small ring there is no one position that is good for everything. Each click though is small. It all feels very natural, like friction but not.
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Old 09-30-20, 08:54 AM
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Originally Posted by zacster
I use Campy Ergo on my main bike and had a hard time when I rented a 105 11sp equipped bike and also once a 10sp Ultegra because I couldn't get rid of the chain rub the way I'm used to. Be happy you have trim.
Both of those bikes were not set up properly if you had chain rub. They both have trim features.

Originally Posted by Amt0571
What I'm wondering is: why is SRAM universally known to be unable to make a good FD when they're the only ones who can manage a FD that needs no trim and doesn't rub? Why can't Shimano and Campy do it too?

To be fair, SRAM Yaw FDs are a huge pain in the ass to set up properly, but once done, they work perfectly.
I'll never understand why people think that Yaw derailleurs are somehow hard to set up. Slightly more time consuming, yes. Difficult, not at all.
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Old 09-30-20, 09:08 AM
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Originally Posted by zacster
With the Campy I have I like being able to get the front just right. To get on the big ring I shift it all the way and then back off one click and I'm good for all 10 cogs. For the small ring there is no one position that is good for everything. Each click though is small. It all feels very natural, like friction but not.
Well, with SRAM Yaw derailleur you don't need to trim anything. You shift whatever gear and there's nothing to adjust.

Originally Posted by cxwrench
Both of those bikes were not set up properly if you had chain rub. They both have trim features.


I'll never understand why people think that Yaw derailleurs are somehow hard to set up. Slightly more time consuming, yes. Difficult, not at all.
For me, more time consuming means it's a pain in the ass. I have little free time unfortunately.
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Old 09-30-20, 09:31 AM
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Originally Posted by Amt0571
Well, with SRAM Yaw derailleur you don't need to trim anything. You shift whatever gear and there's nothing to adjust.



For me, more time consuming means it's a pain in the ass. I have little free time unfortunately.
Hold on...you're telling me that your life is so busy...that you have so little time that you can't find an extra 5 minutes at the most to adjust a derailleur? One time? I hope you're really good at changing flats on the road, if not your life might fall apart.
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Old 09-30-20, 10:12 AM
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Originally Posted by cxwrench
Hold on...you're telling me that your life is so busy...that you have so little time that you can't find an extra 5 minutes at the most to adjust a derailleur? One time? I hope you're really good at changing flats on the road, if not your life might fall apart.
My life is so busy that it's difficult for me to find 1h to wrench on the bike. Which is almost the time I needed to replace the cable and perfectly set up the FD when it moved because the clamp got loose. Nice to know you do it in five minutes. It could be that I'm slower because it was the first time I set up a Yaw FD.

Anyway, thanks for judging me. Maybe someday you'll discover how having a child and a wife that works during your free time affects your ability to wrench before 10pm and your ability to ride after 9am.
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Old 09-30-20, 10:31 AM
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[QUOTE=cxwrench;21720804]Hold on...you're telling me that your life is so busy...that you have so little time that you can't find an extra 5 minutes at the most to adjust a derailleur? One time? I hope you're really good at changing flats on the road, if not your life might fall apart.[/QUOTE


Here you go again. Are you unable to post constructively without the snide remarks ?
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Old 09-30-20, 12:17 PM
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Originally Posted by cxwrench
Both of those bikes were not set up properly if you had chain rub. They both have trim features.
They were rentals from two different places, so probably not. Plus I'm used to Campy which works opposite of Shimano so I was constantly shifting the wrong way.
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Old 09-30-20, 08:09 PM
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[QUOTE=frogman;21720911]
Originally Posted by cxwrench
Hold on...you're telling me that your life is so busy...that you have so little time that you can't find an extra 5 minutes at the most to adjust a derailleur? One time? I hope you're really good at changing flats on the road, if not your life might fall apart.[/QUOTE


Here you go again. Are you unable to post constructively without the snide remarks ?
Barely, but I do have my moments.
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