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Stuck out Shimano 105 shifter?

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Stuck out Shimano 105 shifter?

Old 10-03-18, 12:49 AM
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HonestOne
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Stuck out Shimano 105 shifter?

Hi, I can't figure out why the shifter is stuck this way, any ideas on how to fix? It's stuck to the outside, not the inside of the handlebars. I couldn't find anything obvious to adjust, I hope it's not broken!
Thank you.


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Old 10-03-18, 05:55 AM
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Interesting. Not sure of the exact model, since the face is not on the shifter, but I've not seen one move to the left like that. Or I'm seeing it wrong, and the small shifter is stuck the the right? either way, there is not tension on the cable as the housing is just hanging out there with no pressure on it. Do you have a LBS that is good? I would let someone else get there hands on it to see if it's acting correctly or not. they won't charge you to take a look at it. But I agree with you that it looks wrong.
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Old 10-03-18, 06:11 AM
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There's possibly a frayed shifter cable jammed in there. Or some foreign object.

Taking these things apart is tricky. Kind of like tearing into a small clock. I usually don't try unless it's a "make it or break it" scenario, and I'm prepared to get a new one.
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Old 10-03-18, 06:15 AM
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Do the levers still function, i.e. do they both still a) move freely and b) operate the index mechanism inside the shifter?
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Old 10-03-18, 11:03 AM
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They do have some movement, when trying to "straighten" the brake lever (i.e. bring it back in), it feels like I'm pushing on something and I'm afraid of breaking it further. The cable I can move in and out by hand but there are no "clicks" when trying with the levers, the cable does not move, no index. This is for the front derailleur so I should get one click.
Visually, it doesn't look bent, it looks like the whole brake lever just shifted to the outside, I think the little lever below looks okay?

I've taken many things apart and am willing to try with this as well but wish I had an idea of what to look for, or potentially not completely disassemble.
Thanks for the help thusfar!
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Old 10-04-18, 11:23 PM
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Found the manual! This is definitely going to help. I have the Shimano 105 ST-5601 Double.
Manuals & Technical Documents

Also found this video, very helpful.

Hope this helps someone else out too! I'll try to report if I'm able to find the culprit...
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Old 10-08-18, 12:00 PM
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I spent hours trying to figure out how this works, I get the feeling something is jammed or miss-aligned but I can't get a good look at the mechanism.
Cleaned it out real good and sprayed lots of lubricant in, still not functioning properly and is still crooked.

Next step will be stopping by an LBS to see if they have any insight.
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Old 10-10-18, 04:32 PM
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Originally Posted by HonestOne View Post
I spent hours trying to figure out how this works, I get the feeling something is jammed or miss-aligned but I can't get a good look at the mechanism.
Cleaned it out real good and sprayed lots of lubricant in, still not functioning properly and is still crooked.

Next step will be stopping by an LBS to see if they have any insight.
Why is the shift lever sticking out to the left?? Something is definitely broken.
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Old 10-10-18, 05:11 PM
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LBS didn't have too much insight, just impressed with the disassembly! They tried to find the replacement part for this as well, no luck... They said Shimano doesn't like to keep a ton of spare parts so products gets phased out relatively quickly!

The one thing he thought might be going on is that there may be some sort of little c-clip missing from the little metal post in the picture below.
Looks plausible I guess.

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Old 10-10-18, 09:42 PM
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What are my options as far as interchangeability?
I was trying to read Shimano's guide, am I really limited to only the ST-R701? I had no idea they were so specific... Kind of annoying.
Attached Files
File Type: pdf
2010_Compatibility.pdf (4.54 MB, 6 views)
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Old 10-11-18, 11:54 AM
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https://www.ebay.com/itm/MICROSHIFT-...8AAOSw-NFatq1q
Microshift makes nice shifters and is always a cheaper option.
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Old 11-28-18, 01:59 AM
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Does anyone know where I can find a compatibility guide if I try to replace my set with SRAM or Microshift? Having a hard time finding a replacement online, weeks/months go by without 5601 parts on Ebay

Shimano doesn't have an email I can request an updated "compatibility" guide for this either, lots of 2x10 Shimano options but their official guides have scared me away from getting anything other than an exact replacement, haven't been able to find any other forums where people were successful with other options!
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Old 11-28-18, 09:16 AM
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You could replace your 105 shifters with Ultegra ST-6600 shifters. They are the equivalent series to your 5600 105 and are interchangeable as far as operation is concerned (the finish might be slightly different but not much IIRC). The compatibility chart you linked to confirms this (see PDF page 5). The advanage is that 6600 shifters seem to come up on eBay fairly regularly and, as you say, 5600/5601 shifters don't.
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Old 11-28-18, 09:58 AM
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There's lots of 5600's but those aren't compatible from what I read. Those you could set as a 2 or 3sp on the front, but construction is poor and often break.
st-5601 is only for 2sp.
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Old 11-28-18, 10:45 AM
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Originally Posted by HonestOne View Post
There's lots of 5600's but those aren't compatible from what I read. Those you could set as a 2 or 3sp on the front, but construction is poor and often break.
st-5601 is only for 2sp.
When you say not compatible, what do you mean exactly? I'm not being obtuse, I just want to understand where you're coming from.

As far as I know:
  • the ST-5600 is compatible with double and triple front mechs, whereas the ST-5601 is for double front mechs only (and ST-5603 is for triple front mechs);
  • the cable pull ratio is the same between the ST-5600 and ST-5601 models (and ST-6600 for that matter); and
  • the ST-5600 has a reputation for having weak construction and being prone to failure, particularly when set up for double front mechs, and that is why Shimano released the ST-5601 to replace it (albeit still as part of the 5600 groupset).
The ST-6600 will work.
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Old 11-28-18, 11:01 AM
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Originally Posted by Matt Gaunt View Post
When you say not compatible, what do you mean exactly? I'm not being obtuse, I just want to understand where you're coming from.
  • the cable pull ratio is the same between the ST-5600 and ST-5601 models (and ST-6600 for that matter); and
The ST-6600 will work.
Thank you for trying to be helpful Matt! Much appreciated.

I say it's not compatible per the compatibility guides from Shimano, and all the websites I've looked at regarding my particular group set. I tried pretty hard to see what others had done as far as upgrading just the shifters, didn't really find much.

I figured the pull-ratios would be the ultimate measure as far as what could potentially work, but I could not find those spec's anywhere. Do you know where I could find them?
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Old 11-28-18, 11:23 AM
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Originally Posted by HonestOne View Post
Thank you for trying to be helpful Matt! Much appreciated.

I say it's not compatible per the compatibility guides from Shimano, and all the websites I've looked at regarding my particular group set. I tried pretty hard to see what others had done as far as upgrading just the shifters, didn't really find much.

I figured the pull-ratios would be the ultimate measure as far as what could potentially work, but I could not find those spec's anywhere. Do you know where I could find them?
You're alright mate. No problem.

What I'm talking about here is that the gear shifter cable pull ratios are common between the 5600 and 6600 groupsets. You could even use the Dura-Ace 7800 if you wanted to. I understand the cable pull is also common with that of the later 5700/6700/7900 shifters but I've never used those because they're the first generation with 'under the tape' shifter cables and are known for having more friction than the 5600/6600 generation (and why would I want that?). (The brake cable pull is different between those two generations but let's not get into that here.)

I've seen plenty of setups work by mixing 105 and Ultegra shifters and mechs of the 5600/6600 era with no problems. Even the compatibility chart you posted confirms this. If you look at page 107 of that document, there is a solid line between the box that contains the Ultegra ST-6600 shifter and the 105 FD-5600 front mech.

I have two 6600 groupsets and the shifters are still working perfectly - the Ultegra lever never had the reputation for breaking as the 105 lever does.
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Old 11-28-18, 03:54 PM
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Originally Posted by Matt Gaunt View Post

I've seen plenty of setups work by mixing 105 and Ultegra shifters and mechs of the 5600/6600 era with no problems. Even the compatibility chart you posted confirms this. If you look at page 107 of that document, there is a solid line between the box that contains the Ultegra ST-6600 shifter and the 105 FD-5600 front mech.

I have two 6600 groupsets and the shifters are still working perfectly - the Ultegra lever never had the reputation for breaking as the 105 lever does.
Quick search on Ebay shows many more options for the ST-6600, I'm going to trust you and try to pick up a pair.
Thank you Matt!

*Still curious though, is there a place where the pull ratios are listed? Would love to look through that.
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Old 11-29-18, 05:30 AM
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Originally Posted by HonestOne View Post
Quick search on Ebay shows many more options for the ST-6600, I'm going to trust you and try to pick up a pair.
Thank you Matt!

*Still curious though, is there a place where the pull ratios are listed? Would love to look through that.
Good stuff. Let us know how you get on.

I've never seen any pull ratio charts but that doesn't mean they don't exist
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Old 11-29-18, 05:41 AM
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Science Behind the Magic | Drivetrain Compatibility ? Art's SLO Cyclery

The definitive guide to derailleur cable pull

The Definitive (But Wildly Inaccurate) Guide to Brake Cable Pull Ratios
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Old 11-29-18, 11:43 AM
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Yes, these are interesting threads/articles. It's a shame for the OP that none of them address front shifter cable pull (only rear).

When I get chance, I'll measure my systems' front shifter cable pull and report back.
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